Studying the relationships between organisms and their life processes can help scientists gain a better understanding of the history of life on Earth. They both undergo transcription and translation, which evolutionary scientist believe suggests they share a common origin- describes the relationship between protists and prokaryotes.
What is transcription?
A DNA segment is copied into RNA during transcription. Messenger RNA is created when specific DNA sequences are translated into RNA molecules that can encode proteins (mRNA). Non-coding RNAs are RNA molecules that contain copies of other DNA sequences (ncRNAs). Only 1% to 3% of all RNA samples are mRNA. A minimum of 80% of mammalian genomic DNA can be actively transcribed (in one or more types of cells), with the bulk of this 80% being ncRNA. In contrast, less than 2% of the human genome can be transcribed into mRNA (see Human genome Coding vs. noncoding DNA).
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A researcher who focuses on the interactions between organisms and their environments ecology.
What is the study of the relationship between living organisms?Biology's field of ecology focuses on the interactions between species and their environments as well as the links that exist between them.The study of the similarities and differences between the skeletal systems of various species is known as comparative anatomy. Homologous or comparable structures are two terms used to describe similar body parts. Both show that evolution has occurred.Living things rely on one another and the settings, or habitats, in which they are located to meet their basic needs. We refer to this as dependency. One approach to illustrate interdependence is through a food chain. A food chain demonstrates the flow of energy from one organism to another.Any contact or relationship between two biologically distinct species is referred to as symbiosis. The type of symbiosis that develops relies on whether one or both species gain an advantage from the partnership.To learn more about ecology refer to:
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Which of the following would violate the requirements for evolution of a trait to occur through natural selection?
-The trait is heritable.
-There is variation in the trait.
-There is variation in reproductive success.
-There is no correlation between variation in the trait and reproductive success.
-None of these would prevent evolution of the trait via natural selection.
-All of these would prevent evolution of the trait via natural selection.
All of these would prohibit the characteristic from evolution through natural selection.
define heritability ?
The degree of phenotypic (observable) variation in a population that can be traced to individual genetic variations is referred to as heritability. In general, heritability is defined as the ratio of genotypic variance to total phenotypic variation in a population given a character or trait. The notion is widely utilised in behavioural genetics and quantitative genetics, where heritability estimates are computed using correlation and regression techniques or analysis of variance (ANOVA).
Heritability is a term that is frequently used in twin studies in the field of behavioural genetics. The technique is based on the fact that identical twins (monozygotic, or one-egg twins) share 100% of their DNA, whereas nonidentical, or fraternal, twins (dizygotic, or two-egg twins) are comparable to other siblings.
All of these would prohibit the characteristic from evolution through natural selection.
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an individual with group ab blood does not have which of the following antigens present on their red blood cells?
An individual with group ab blood does not have antigen "O" present on their red blood cells.
What do blood antigens do?Blood group antigens are either proteins or carbohydrates that are connected to various parts of the membrane of the red blood cell. For instance, carbohydrates are the ABO blood group's antigens. In a sequence of processes, enzymes catalyzes the conversion of sugar units, which results in their production.
What blood groups in the ABO system are there in humans?Red blood cells carrying blood group A antigens have anti-B plasma antibodies.Plasma from people with blood group B comprises anti-A antibodies and B antigens.Blood group O has both anti-A and anti-B antibodies in the plasma but no antigens.A and B antigens are expressed in blood group AB, however there are no antibodies.Learn more about antigen here:
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In a simple monohybrid Punnett Square, which of the following statements are accurate when crossing a homozygous dominant parent with a heterozygous parent for any given trait?
Choose ONE correct answers.
A. 75% of the offspring will be homozygous dominant.
B. 25% of the offspring will be homozygous recessive.
C. All of the offspring will show the recessive phenotype.
D. None of the offspring will show the recessive phenotype.
E. 75% of the offspring will show the dominant phenotype.
Which of the following is incorrect about water?Question 28 options:A) Finding coliforms in high numbers indicates fecal contamination of the water.B) When a water quality test is negative for coliforms, it is considered fit for human consumption.C) The membrane filter method is a widely used rapid method to test large quantities of water for quality.D) There is no acceptable level for fecal coliforms, enterococci, viruses, or pathogenic protozoans in drinking water.E) The (Most Probable Number) MPN specifically detects fecal coliforms.
The (Most Probable Number) MPN specifically detects fecal coliforms incorrect about water.
What does an elevated coliform count in water mean?Your chance of developing a disease transmitted by water is raised if coliform bacteria are present in your drinking water. A positive total coliform sample should be taken as a sign that your well is contaminated even though total coliforms can come from sources other than faeces.All warm-blooded species, including humans, have coliform bacteria in their excrement and the environment. It is unlikely that coliform bacteria will get you sick. However, the fact that they are found in drinking water suggests that pathogenic organisms (pathogens) may be present in the water system.To learn more about water refer to:
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Talk about it! Moths pollinate flowers at night. What kinds of flowers do you think they pollinate?
Numerous plants, including morning glory, tobacco, yucca, and gardenia, generate nectar, although it is deeply concealed. They pollinate them in a manner similar to how butterflies fertilize flowers during the day.
How do you pollinate by hand?To manually pollinate a male flower, remove the petals to reveal the stamen inside. Pollen is attached to it if you look closely. The brush to the female blossoms can be touched with your finger.
Why is flower pollination necessary?Pollen movement within and between flowers of the same species promotes fertilization, which is essential for the successful development of seeds and fruit in plants. A plant must be pollinated to produce fruit with a full range of seeds that are viable.
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Which of the following is not true about archaeal ribosomes?
A. They are 70S like bacterial ribosomes.
B. They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences.
C. They have similar antibiotic sensitivities to those of bacteria.
D. All of these are true about archaeal ribosomes.
C) Antibiotics have the same effect on them as bacteria.
Ribosomes are macromolecular protein synthesis machines found at the site of biological protein synthesis.
Ribosomes in Archaea are made up of three RNA molecules: 16S, 23S, and 5S.
The archaeal ribosome is a 70S ribosome with 50S and 30S subunits.
The archaeol ribosomal binding site, known as the Shine- Dalgarno sequence, is thought to be similar to that of bacteria.
The antibiotic sensitivity of archaeal ribosomes differs from that of bacteria because the archaeal r-protein sequence is more similar to that of eukaryotes than bacteria.
Susceptible means they can't grow in the presence of the drug. This demonstrates that the antibiotic is effective against bacteria. Even in hostile environments, resistant bacteria can grow.
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digestion is the breakdown of large organic molecules into component parts that can be absorbed. match the large organic molecules with the units that can be absorbed.
Monosaccharides = Carbohydrates. A protein is an amino acid. Fatty acids and fructose make up triglycerides.
Define fatty acids
The building blocks of fat through our bodies and the substances we eat are known as fatty acids. Lipids are changed into fatty acids by the body during digestion so they can be absorbed into the bloodstream. When carboxylic acid group receptors are connected, a substance called a triglyceride is produced.
Which fatty acids are some examples?
Among the foods that contain fatty acids are fruits, vegetable oils, seeds, nuts, greases, especially fish oils. Fats, such as omega-3 fatty acids, promote vital biological functions.
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Complete question
Digestion is the breakdown of large organic molecules into component parts that can be absorbed. match the large organic molecules with the units that can be absorbed.
roots, stems, and leaves of plants each are composed of various tissue such as xylem, phloem, epidermis, cortex, pith, and endodermis. Roots, stems, and leaves of plants should be considered to be a plant.
Plants' roots, stems, and leaves are made up of diverse tissues such as xylem, phloem, epidermis, cortex, pith, and endodermis. Plant roots, stems, and leaves should all be considered plant organs.
Each plant organ comprises all three tissue types, although they are arranged differently in each organ. In dicot roots, the xylem and phloem of the stele are placed alternately in an X shape, but in monocot roots, the vascular tissue is arranged in a ring around the pith. Furthermore, monocots have fibrous roots, whereas eudicots have tap roots. Vascular bundles in dicot stems are organized in a ring toward the stem's periphery. The vascular bundles in monocot stems are randomly distributed throughout the ground tissue. There are two types of photosynthetic parenchyma cells in leaves (palisade and spongy). They, like all plant organs, have vascular tissue. The leaves of monocots have parallel veins of vascular tissue, whereas the leaves of dicots have branching or net-like veins of vascular tissue. So, the roots, stems, and leaves of plants are made up of a variety of tissues, including the xylem, phloem, epidermis, cortex, pith, and endodermis are all examples of plant organs.
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Why is water treatment essential? Water is a natural resource Water is a shared resource Water is an unlimited resource. Water is a limited resource
Pls help asap
Natural sources of water that might be helpful to humans are known as water resources.
What is water such a valuable resource?One of the natural resources that is present in a sufficient amount is water. It is a necessary component for life to exist on earth.It is a vital source for the continuation of life on Earth. It is extensively utilised for many different things, including drinking, bathing, cleaning, cooking, irrigation, and other residential and commercial functions.Due to a lack of drinking water and the expanding requirements of the world's population, water treatment is becoming more and more important. Only 2.5% of the planet's total water reserves are freshwater, and only 0.4% of this is suitable for human use.Natural sources of water that might be helpful to humans are known as water resources.To learn more about water refer to:
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7. Below is a diagram of a house receiving 90°
direct insolation.
90°
At which latitude would this house be located if
the date were...
a. March 21?
b. June 21?
c. September 23?
d. December 21?
The electromagnetic radiation that the sun emits is known as solar radiation, also referred to as the solar resource or just sunshine. Several methods exist that can be used to collect solar radiation and transform it into useful types of energy, such as heat and electricity.
What is solar radiation?Some of the sunlight is reflected, scattered, and absorbed as it travels through the atmosphere on:Moles of airHydrogen vapourCloudsDust Pollutantsa forest fireVolcanoes.Solar radiation that is diffuse. Direct beam solar radiation is the form of solar radiation that directly reaches Earth's surface. Global solar radiation is the total of all sun energy, including diffuse and direct. Direct beam radiation may be reduced by 10% or even 100% depending on the type of atmosphere present.Photovoltaic (PV) systems can utilise both direct and scattered sunshine, therefore the solar resource is abundant throughout the United States. Other technologies could have additional limitations. But how much solar energy is received at a given location will determine how much power any given solar technology can produce there. Because the southwest of the United States receives the most solar energy, solar technology operate there with the best efficiency.To Learn more About solar radiation Refer To:
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in addition to sympathetic nervous system activation, the adrenal glands also produce hormones to assist in the stress response. if a blood sample were taken from jennifer, which of the following would indicate increased activity by the adrenal medulla in response to the car accident? select all that apply. Epinephrine
Norepinephrine
ACTH
Aldosterone
Cortisol
In addition to sympathetic nervous system activation, the adrenal glands also produce hormones to assist in the stress response. if a blood sample were taken from jennifer, Epinephrine and Norepinephrine indicate increased activity by the adrenal medulla in response to the car accident.
Both a neurotransmitter and a hormone, norepinephrine is also referred to as noradrenaline. Your body's "fight-or-flight" response depends on it. Norepinephrine is a medication that is used in specific, urgent, short-term medical settings to raise and maintain blood pressure.
An excessive amount of norepinephrine can cause organ stress, anxiety, high blood pressure, a rapid heartbeat, and headaches, high blood sugar, and insomnia. High norepinephrine levels can also be a symptom of drug withdrawal, chronic kidney disease, and psychiatric disorders like PTSD.
Severe allergic reactions (including anaphylaxis) to meals, medicines, insect stings, foods, or other substances are treated in an emergency with an injection of epinephrine. Additionally, it is used to treat anaphylaxis brought on by unknown substances or physical exertion.
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if you need assistance on chi-square hypothesis testing for the question below, refer to the pre-lab activity of your lesson.
Before running a chi-square test, make sure there are two categorical variables, two or more categories (groups) for each variable, and independent observations.
At least 80% of the cells should have an anticipated value of 5 or higher, and no cell should have an expected value of less than 1. Categorical variables are examined using the chi-square tests.You reject your null hypothesis if your estimated chi-square value exceeds the chi-square critical value. You "fail to reject" your null hypothesis if your estimated chi-square value is lower than the chi-square critical value. The predicted frequency must be at least 5 for the chi-square approximation to be accurate. Small samples cannot be used for this test, and you may need to combine certain tail bins if some counts are fewer than five.
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word bank fatty acid steroids hydrophobic triglycerides phospholipids cholesterol hydrophilic are are not glycogen lipids include
Lipids include fatty acids, steroids, triglycerides, phospholipids, cholesterol, and glycogen.
What is lipids?
Lipids are a group of organic compounds that are important for the healthy functioning of the body. They include fats, waxes, sterols, phospholipids and triglycerides. Lipids are essential components of all living cells, providing energy, forming cell membranes and regulating biochemical processes. Lipids provide the energy needed for many metabolic processes in the body and help to store energy for later use. They also make up the structural components of cells, forming cell membranes, and are involved in a variety of cellular processes. Lipids play a role in regulating hormones, controlling inflammation, protecting the integrity of cells, and even helping to form new cells. In addition, lipids help to transport vitamins and other nutrients throughout the body. They are also important for the absorption of fat-soluble vitamins, such as vitamins A, D, E and K.
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the america first action is a super pac led by former administrator of the small business administration linda mcmahon. which of the following best explains how the organization can operate to influence elections, according to the decision in citizens united v. federal elections commission (2010) ?
The america first action is a super PAC led by former administrator of the small business administration linda mcmahon the organization can operate to influence elections, according to the decision in citizens united v. federal elections commission (2010).
In accordance with the ruling in Citizens United v. Federal Elections Commission (2010), a super PAC, such as America First Action, is permitted to operate to influence elections by raising and spending an unlimited amount of money from corporations, unions, and individuals, so long as the super PAC does not coordinate with any candidates or political parties. Independent expenditures, which are defined as spending not undertaken in collaboration with a candidate or political party, are allowed under the First Amendment, according to the opinion. Thus, America First Action, as a super PAC, is permitted to raise and spend as much cash as it wants on independent expenditures including advertising, community organising, and other election-related activities to support or oppose candidates for federal office.
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As the adrenal gland releases glucocorticoids, which of the following effects may be observed? Select all the answers that apply.Increased blood levels of amino acidsDecreased blood pressure and volumeDecrease in immune system functionLipid breakdown in the liver will increaseIncreased water absorption in the kidneyIncreased blood glucose levels
Decreased blood pressure and volume
Decrease in immune system function
Increased blood glucose levels
What are glucocorticoids?
Glucocorticoids are cholesterol-derived steroid hormones synthesised and secreted by adrenal gland. They are anti-inflammatory in all tissues, and control metabolism in muscle, fat, liver and bone. Glucocorticoids also affect vascular tone, and in brain influence mood, behaviour and sleep‒wakefulness cycles.
Types of Glucocorticoids
Among most common ones are: Cortisone: shot that can ease inflammation in our joints. Prednisone and dexamethasone: pills that treat allergies, arthritis, asthma, vision problems, and other conditions. Triamcinolone: cream that treats skin conditions.
Natural glucocorticoids, namely cortisone or hydrocortisone, cholesterol-derived hormones secreted by adrenal glands and are named after their roles in maintaining glucose homeostasis.
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is this an internal or external rotation and turo posterior projection of the proximal humerus and shoulder.
In contrast to external rotation, which moves away from the body's center, internal rotation of the shoulder involves rotation in the direction of the body's center.
What is the Internal/external rotation of the shoulder?
Internal shoulder rotation is a movement in the direction of the body's center, whereas external shoulder rotation is a movement away from the body's center.
Teres major, pectoralis major, subscapularis, latissimus dorsi, and anterior deltoid are the principal muscles that contribute to internal rotation.
Teres minor and infraspinatus are the primary muscles in charge of external rotation.
For the rotator cuff muscles to stay in good shape and to guarantee the best shoulder mechanics, internal and external rotation are crucial, especially when participating in sports or exercising with heavy loads in the gym.
Reach behind and over your shoulder with one hand to grip the dowel rod while extending the other hand, bent at the elbow at 90 degrees from below, in the same manner while standing up straight and keeping your head looking forward and back in neutral position. Switch hands and continue.
After that, as a Coach, we'll compare each side's measurement of the space between your hands.
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Which of the following is not a clinical symptom of the lesion of the upper motor neuron?
1) Involuntary muscle contractions
2) Slow-slurred speech
3) Extension of the hallux
4) None of the above
Answer:
Nin of dhevy izvsh aibwvsu kzbsix uscsudbdd
Involuntary muscle contractions, slow-slurred speech, and extension of the hallux, all are symptoms of the lesion of the upper motor neuron. Therefore, option D is correct.
A lesion of the upper motor neuron refers to damage or dysfunction in the neural pathways that carry signals from the brain to the spinal cord. This type of lesion can occur due to various causes, such as stroke, traumatic brain injury, multiple sclerosis, or certain neurodegenerative disorders.
The affected individual may experience weakness or difficulty controlling voluntary movements, often on one side of the body.
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excretion is the process of removing wastes from the body. if the body is to operate as we expect it to, it must get rid of nonuseful substances produced during digestion and metabolism. which of the following is untrue with regards to excretion?
Every organ system plays a direct role in excretion is untrue with regards to excretion.
What is excretion?
The process of eliminating wastes and surplus fluids from the body is known as excretion. It is one of the primary mechanisms through which the body maintains homeostasis. Although the kidneys are the primary excretory organs, numerous additional organs also expel waste. The big intestine, liver, skin, and lungs are among them. The excretory system is made up of all of these excretory organs, as well as the kidneys.
Other than the kidney, the roles of the excretory organs are listed below:
The large intestine removes solid wastes left behind from meal digestion.
Excess amino acids and toxins in the blood are broken down by the liver.
Sweat contains extra water and minerals, which the skin removes.
Water vapor and carbon dioxide are expelled by the lungs.
Hence, Organs of excretion make up the excretory system. They include the kidneys, large intestine, liver, skin, and lungs.
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Complete question:
Which of the following is untrue with regards to excretion?
1. Carbon dioxide, a by-product of cellular respiration, is carried in the blood to the lungs, where it leaves the body in exhaled air
2. The urinary system disposes of nitrogen-containing metabolic wastes, such as urea, in urine.
3. Every organ system plays a direct role in excretion.
4. The digestive system rids the body of indigestible food residues in feces.
Rank each state of water in order of increasing density, starting with the least dense state at the top of the list.
ice
water vapor
liquid water
Rank each state of water in order of increasing density, starting with the least dense state at the top of the list. That is given below-
water vapor
ice
liquid
What is density?
How dense a substance is in a specific area is determined by its density. A density of material is defined as its mass per unit volume. It is essentially a measure of how tightly something is packed. It is a specific physical quality of a certain thing. The density principle was discovered by the Greek scientist Archimedes. Calculating density is easy if you are familiar with the formula and the necessary units. Instead of the symbol, the word "density" can be represented by the letter "D."
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which of the following factors would tend to increase membrane fluidity? which of the following factors would tend to increase membrane fluidity? a greater proportion of unsaturated phospholipids a relatively high protein content in the membrane a lower temperature a greater proportion of saturated phospholipids
Answer:
Option 1: "a greater proportion of unsaturated phospholipids" would tend to increase membrane fluidity.
Membranes are composed of a lipid bilayer made up of phospholipids and other lipids. The fluidity of the membrane can be affected by the properties of the lipids in the bilayer.
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All of the following are Lancefield carbohydrate antigens found on beta hemolytic Streptococcus species. All of the following antigens are found on organisms from the Streptococcus anginosus group EXCEPT:ABCD
Group B antigens are not found on organism from the streptococcus anginosus.
Catalase-negative Gram-positive cocci are categorized using the Lancefield grouping system based on the carbohydrate makeup of the bacterial antigens present on their cell walls.
The system, developed by Rebecca Lancefield, was once used to classify the various members of the family Streptococcaceae, which includes the genera Lactococcus and Streptococcus. However, it is now largely superfluous due to the rapid increase in the number of streptococcal species discovered since the 1970s.
Even after the taxonomic modifications, it still had some clinical utility, and as of 2018, Lancefield labels are frequently used to convey the findings of medical microbiological tests.
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What can you do to help sentient beings?
Examine both you and other people. Examine and determine whether a behaviour is advantageous to both you and others directly or indirectly. In that case, one must act. It is forbidden to assist sentient beings.
Are all creatures conscious?
Sentient beings are those that possess centralised neural systems. This contains several types of plants, mammals, archaea, protists, fungus, and bacteria. It is possible that certain creatures with extremely straightforward centralised neural systems are not human either, although this is an unresolved issue.
Which creatures are instances of sentient beings?
Which Animals Fall Under the Sentient Category? Humans alongside nonhuman animals such as crayfish, pelagic fish, sea turtles, dogs, cats, horses, whales, and dolphins are frequently included in the category of sentient beings.
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Examine both you and other people. Examine and determine whether a behaviour is advantageous to both you and others directly or indirectly. In that case, one must act. It is forbidden to assist sentient beings.
Are all creatures conscious?Sentient beings are those that possess centralised neural systems. This contains several types of plants, mammals, archaea, protists, fungus, and bacteria. It is possible that certain creatures with extremely straightforward centralised neural systems are not human either, although this is an unresolved issue.
Which creatures are instances of sentient beings?Which Animals Fall Under the Sentient Category? Humans alongside nonhuman animals such as crayfish, pelagic fish, sea turtles, dogs, cats, horses, whales, and dolphins are frequently included in the category of sentient beings.
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Which of the following statements regarding membrane transport is false?
Specific proteins are needed to transport polar and charged solutes effectively across cell membranes.
Sugars are always transported by active transport rather than by facilitated diffusion carriers.
Small molecules can transport across the cell membrane, but large molecules like proteins, usually are not transported.
Special protein that form membrane channels are used to transport ions.
B. Sugars are always transported by active transport rather than by facilitated diffusion carriers. This statement is false.
While it is true that some sugars are transported across the cell membrane by active transport, which requires the expenditure of energy, other sugars can also be transported by facilitated diffusion, which is a passive process that does not require energy.
Facilitated diffusion uses specific protein carriers (facilitated diffusion proteins) that bind to the solute and change shape to allow the solute to diffuse across the membrane. These carriers are also specific to certain types of solutes.
The rest of the statements are correct. To effectively transport polar and charged solutes across cell membranes, specific proteins are required. Small molecules can cross the cell membrane, but large molecules, such as proteins, are usually not transported. Ions are transported using special proteins that form membrane channels.
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Read the following sentence from the introduction [paragraphs 1-4]. "That's because cold and flu viruses, despite their ferocity inside our warm bodies, are structurally wimpy and cannot bear the harsh conditions of the dry, outside world." Which sentence from the article BEST supports this idea? O Viruses outside the body can be better described as either infectious or identifiable - meaning the genetic material that was once inside the virus can be detected via a lab technique like polymerase chain reaction, or PCR. Flu viruses and many cold viruses also have a viral envelope, meaning the capsid is covered by two layers of lipids similar to the cell membranes found on organisms. O Cold and flu viruses' rapid decrease in viability outside the body is thanks to three main factors: their enveloped structure, environmental conditions and how much our mucus surrounds it after a sneeze. But on the plus side, Greatorex said, the more mucus a friend or co-worker sneezes, the shorter distance it will
The correct option is (C). The rapid decline in survival of cold and flu viruses outside the body is due to three key factors; their enveloped structure, external conditions, and how much our mucus surrounds it after a sneeze.
The majority of colds are caused by rhinoviruses, but other infections such as coronavirus, parainfluenza, and respiratory syncytial virus can also cause them. All of these things can lead to serious problems like bronchitis and pneumonia, especially in people with respiratory diseases like asthma and those with weakened immune systems. The influenza A virus family is the most common cause of the flu in humans. The CDC estimates that the flu causes 12,000 to 56,000 deaths in the United States each year, while the World Health Organization believes that the virus kills up to 650,000 people globally. And viruses are nonliving bits of genetic material — DNA or RNA — encased in protein coats called capsids. Flu and many cold viruses contain a viral envelope, which means the capsid is surrounded by two layers of lipids similar to cell membranes seen in organisms. While enveloped viruses are usually eliminated within 48 hours, non-enclosed viruses, such as norovirus, an intestinal sickness that has caused several large outbreaks on cruise ships, can survive on surfaces for weeks.
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The complete question is: Read the following sentence from the introduction [paragraphs 1-4].
"That's because cold and flu viruses, despite their ferocity inside our warm bodies, are structurally wimpy and cannot bear the harsh conditions of the dry, outside world."
Which sentence from the article BEST supports this idea?
(A) Viruses outside the body can be better described as either infectious or identifiable - meaning the genetic material that was once inside the virus can be detected via a lab technique like polymerase chain reaction, or PCR.
(B) Flu viruses and many cold viruses also have a viral envelope, meaning the capsid is covered by two layers of lipids similar to the cell membranes found on organisms.
(C) Cold and flu viruses' rapid decrease in viability outside the body is thanks to three main factors: their enveloped structure, environmental conditions and how much our mucus surrounds it after a sneeze.
(D) But on the plus side, Greatorex said, the more mucus a friend or co-worker sneezes, the shorter distance it will travel because of its increased weight and size.
Scientists have spent many years studying the peppered moth, which is a species that has adapted its color from light to dark in reaction to environmental pollution. Which of the following line graphs represents the data from the table? (The solid lines on the graph represent dark moths and the dashed lines represent light moths). A. Figure A
B. Figure B
C. Figure C
D. Figure D None of the Graphs
It was eventually discovered that the colour was genetic. Moths bred new generations with their hue. Dark moth eggs became dark adults, while light moth eggs became light adults.
All of the moth's offspring carry the mutant gene, which resulted in the dark colour due to a mutation in the moth's DNA. Researchers have identified the precise mutation that caused moths to turn black during the Industrial Revolution. In a famous evolutionary case study, during the 1800s in industrial areas of the UK, a black version of the peppered moth quickly overran as soot darkened the tree trunks and walls of its habitat.
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contrast the properties of the polysaccharides starch , cellulose and glycogen and relate these to their roles in the cells
Starch, cellulose, and glycogen are all polysaccharides composed of glucose monomers. Starch is a storage polysaccharide found in plants, and it is composed of α-glucose units.
The properties of the polysaccharides starch , cellulose and glycogenStarch is the most abundant form of carbohydrate in the diet and it is a major energy source for many organisms. It is a component of plant cell walls and plays a structural role in plants. Starch is also used to store energy in plants and is broken down for energy production in animals.
Cellulose is also a storage polysaccharide found in plants, and it is composed of β-glucose units. Cellulose is the most abundant organic material on the planet and is a major component of cell walls in plants. It is also a component of the diet of some animals, but it is not easily digested. Cellulose plays an important structural role in plants and helps to provide support and rigidity to the cell walls.
Glycogen is a storage polysaccharide found in animals, and it is composed of α-glucose units. Glycogen is the main form of glucose storage in animals and is broken down for energy production.
It is also a component of cell walls in animals and plays an important role in energy storage and metabolism. It is also an important source of energy for muscle contraction and is important for maintaining blood glucose levels.
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Contrast The Properties Of The Polysaccharides Starch, Cellulose And Glycogen And Relate These To Their Roles In The Cell
Polysaccharides made of glucose monomers include starch, cellulose, and glycogen. Starch is a plant storage polysaccharide that is made up of -glucose units.
In plants, what functions do the polysaccharides starch and cellulose play?Plants produce two kinds of polysaccharides: cellulose and starch. However, their structures and functions are distinct. Cellulose serves as support and structure, whereas starch is primarily used for energy storage.
What function do polysaccharides play?In both animals and plants, the polysaccharides function as a structural organization. Polysaccharides also serve the following roles: They keep energy in living things. Multiple hydrogen bonds prevent water from entering the molecules, making them hydrophobic.
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contrast the properties of the polysaccharides starch , cellulose and glycogen and relate these to their roles in the cells
jg200567 avatarjg20056704/28/2021BiologyHigh Schoolanswered • expert verifiedWhich of the following best describes Darwin's (and Wallace's) theory of evolution?Question 1 options:Organisms adapt during their individual lifetime and then pass on that adapted trait to their offspring.The different species appeared on our planet in a random fashion. There are no reasons for why animals are in the locations they are in or have the features they have.Galapagos finches have changed over time to get longer beaks to be able to eat the seeds on the islandThe diversity of life on our planet comes from the process of evolution supported by the mechanism of natural selection.
The option that best describes Darwin's theory of evolution, is option A: organisms adapt during their individual lifetime and then pass on that adapted trait to their offspring.
Darwin suggested the theory of natural selection according to which:
there is a great deal of variety among individual organisms within a single species, and those with traits best adapted to their environment have a higher chance of surviving and reproducing.the traits that have helped these people survive are then passed on to the following generation.Thus, option A marks the right choice.
During his five-week expedition to the Galapagos Islands, which are located in the Pacific Ocean close to Ecuador, Darwin saw a wide variety of creatures, including finches, tortoises, and mockingbirds. Once he got back from his travels, he kept working and developing his ideas. Darwin's theory of evolution by natural selection posed a challenge to the notion that all the plants and animals that exist today were created by God.
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what statement is most likely true about the galapagos island finches
The most likely true statement is-About 18 species of passerine birds make up the Darwin's finches, also referred to as the Galápagos finches.
What makes Galapagos finches unique?
The term "Darwin's finches" or "Galapagos finches" refers to a group of about 18 species of passerine birds. They have a reputation for being distinctive due to their astounding variation in beak shape and function. They are frequently categorized as belonging to the Geospizini tribe or subfamily.Darwin noted that different finch species have distinctive beak shapes. His hypothesis was that an ancestor species' beak had evolved over time to allow the finches to access a variety of food sources. The term "Darwin's finches" was first used by Percy Lowe in 1936; David Lack popularized it in his book, published in 1947.To learn more about Galapagos island refer to :
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when tissues are injured or infected, chemical signals can be released that affect the plasma membrane of cells that line the nearby blood vessels. these blood vessels' cells (endothelial cells) respond to the chemical signals by displaying a type of glycoproteins on their surface. these proteins will attach to circulating white blood cells bringing them to the site of injury or infection. these glycoproteins would best be described as . when tissues are injured or infected, chemical signals can be released that affect the plasma membrane of cells that line the nearby blood vessels. these blood vessels' cells (endothelial cells) respond to the chemical signals by displaying a type of glycoproteins on their surface. these proteins will attach to circulating white blood cells bringing them to the site of injury or infection. these glycoproteins would best be described as . desmosomes transport proteins g-proteins cell adhesion molecules (cams)
Cell Adhesion Molecules (CAMs) are proteins that mediate cell-to-cell adhesion and development communication. They are found on the surface of cells and can interact with similar molecules on neighboring cells.
CAMs play important roles in the development and maintenance of tissue architecture, cell migration, and immune response. There are several types of CAMs, including cadherins, integrins, and selectins, each of which have different functions and binding specificities. These CAMs will attach to circulating white blood cells , bringing them to the site of injury or infection. Defects in CAMs have been linked to various diseases cells , including cancer and autoimmune disorders. Understanding the roles and regulation of CAMs is crucial for the development of new therapies for these diseases.
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When the brain is sorting out and attending only to the most important messages from the senses, it is engaged in the process of _____.
A)sensory adaptation
B)sensory habituation
C)selective attention
D)selective sorting
By enabling people to tune out distractions and concentrate on the most pertinent or significant stimuli around them, sensory adaptation performs a vital purpose .Think about what life would be like without sensory adaptation.
Where in the brain does sensory adaptation take place?The somatosensory cortex is the primary area of the brain responsible for processing sensory data.
What does sensory receptor adaptation entail?When a receptor neuron's electric responses start to wane over time despite the ongoing presence of a constant-intensity suitable stimulus, this is called adaptation. The frequency of spikes produced within the receptor neuron gradually declines as a result of this shift.
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