All cells share four common components: 1) a plasma membrane, outer protection that separates the interior of the cell from its surrounding surroundings; 2) cytoplasm, including a jelly-like region within the cell wherein other cellular additives, are determined; three) DNA, the genetic cloth of the cell, and 4) ribosomes.
The structures which are observed in all kinds of cells are the cellular membrane, ribosomes, cytoplasm, and DNA. The cellular membrane also referred to as the plasma membrane, is the outer barrier of the cell. It protects the cell and allows modify what is going in and out through selective permeability.
Prokaryotes are usually unicellular, at the same time as eukaryotes are regularly multi-celled organisms. additionally, eukaryotic cells are more than 100 to 10,000 times large than prokaryotic cells and are much extra complicated. The DNA in eukaryotes is saved inside the nucleus, even as DNA is stored within the cytoplasm of prokaryotes.
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provide an example of a postzygotic mating barrier, and explain how it works to reinforce reproductive isolation in an area of secondary contact.
An example of a postzygotic mating barrier, low hybrid viability .
Hybrid offspring are born but have lower fitness and are therefore less likely to reach sexual maturity. Another example is where hybrid offspring is healthy but unable to breed.
Postzygotic mating barriers reduce the reproductive capacity of hybrid offspring. The three types of postzygotic barriers are hybrid zygote abnormality, hybrid infertility, and low hybrid viability . Many research theory suggests that incompatibility alleles those who have evolved neutrally are not able to be maintained in secondary contact.
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You have been asked to draw a Bohr model of the element carbon. How would you arrange the dots that represent electrons?
A.
They would be embedded in a solid core.
B.
They would be in rings around the nucleus.
C.
They would be located in a central nucleus.
D.
They would be spread evenly in the shape of a cloud.
You have been asked to draw a Bohr model of the element carbon. How would you arrange the dots that represent electrons?.... They would be in rings around the nucleus.
What is nucleus ?
Protons, which have a positive charge, and neutrons, which have no electrical charge, make up the nucleus. Quarks are subatomic particles that make up protons and neutrons.
A small, positively charged nucleus and negatively charged electrons orbit each other to form an atom in the Bohr Model. Here's a closer look at the Rutherford-Bohr Model, also known as the Bohr Model.
Hence the correct answer is B. They would be in rings around the nucleus.
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what metabolic changes occur as a result of tissue ischemia during the compensatory stage of hypovolemic shock? select all that apply.
Anaerobic metabolism during the compensatory phase of hypovolemic shock, metabolic alterations result from tissue ischemia.
Is metabolic acidosis a side effect of hypovolemic shock?Trauma patients frequently enter the operating room (OR) in hypovolemic shock, which causes tissue hypoperfusion and develops into an acute metabolic acidosis with or without a respiratory component.
What takes place during the compensatory phase of hypovolemic shock?Vascular pressure drops and tissue hypoperfusion result from less blood flowing in the body. Immediate compensatory processes, such as peripheral vasoconstriction and fluid migration into the plasma, work to raise blood pressure and keep vital organs like the heart, brain, and kidneys supplied with blood.
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which agricultural method is most similar to intercropping? integrated pest management no-till agriculture contour plowing agroforestry
The farming technique most like intercropping is crop rotation.
What type of farming practice most closely resembles intercropping?Crops are grown in the same area at the same time, a practice known as intercropping that is similar to crop rotation. Planting the crops in alternate rows or strips is the most popular method for intercropping, though there are other methods.
What does "methods" in no-till farming mean?In order to create furrows, plant seeds immediately, firm them down, and cover them with soil using the no-till farming method, special equipment (such as disc seeders or agriculture drills) is needed. In doing so, the soil is disturbed as little as possible because it is dug precisely where the seed should fall.
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people with schizotypal personality disorder tend to show dysregulation of blank in the brain.
People with schizotypal personality disorder tend to show dysregulation of dopamine in the brain.
People with schizotypal personality disorder typically have few, if any, close relationships and are frequently referred to as odd or eccentric. Most of the time, they don't know how relationships form or how their actions affect other people. They might also misunderstand the motives and actions of other people, leading to a significant lack of trust in them.
Functional abnormalities in the brain are caused by changes in the dopamine system, which may eventually lead to psychosis and abnormal salience attribution.
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cleo has a vegetable garden and wants to increase the amount of nitrogen in the soil. how can she most likely do this? add several soybean plants to h
Add several soybean plants to her garden to increase the amount of nitrogen in the soil.
In order to increase the nitrogen availability ,nitrogen fixing plants like peas or beans should be planted or Adding natural composted or manure to the soil.
The Fastest way to add nitrogen to soil is by applying a nitrogen-rich fertilizer. This includes certain all-purpose plant foods with a high portion of nitrogen. Nitrate is the form of nitrogen most used by plants for growth and development. Urea is the most common N fertilizer, but many more N fertilizers made up from ammonia.
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which of the following is associated with air that has reached 100% relative humidity? select all that apply. group of answer choices dew point temperature lifting condensation level (lcl) dry adiabatic rate (dar) saturated adiabatic rate (sar)
The option that is associated with air that has reached 100% relative humidity is the saturated adiabatic rate (SAR). Thus, the correct option for this question is C.
What is Relative humidity?Relative humidity may be defined as a measurement that signifies the level of water vapor present in a mixture of water and air as compared to the maximum possible amount. It is represented as RH.
Relative humidity also determines a ratio of the humidity ratio of a particular water-air mixture compared to the saturation humidity ratio at a given temperature.
Saturated air has reached 100% relative humidity without any differentiation in the process. So, according to the options, saturated adiabatic rate (SAR) is directly associated with the same phenomenon.
Therefore, the correct option for this question is C.
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Questi 21 of 32
Which of the following structures is found in both eukaryotic and prokaryotic
cells?
A. Mitochondrion
B. Lysosome
C. Cytoplasm
OD. Nucleus
SUBMIT
What part the body help the digestive system and respiratory system works together?.
The respiratory and digestive systems both depend on the pharynx. It enables the passage of breathed air from the nasal cavity to the lungs, larynx, and trachea. The epiglottis is located in a region of the pharynx known as the nasopharynx.
The respiratory system not only aids in breathing, but also guards against the ingestion of dangerous particles through eating, sneezing, or coughing. The pharynx, also known as the throat, is a flexible muscular tube with a funnel-like form that carries air from the mouth and nose to the trachea, also known as the windpipe. Additionally, it links the esophagus and larynx to the nasal and oral canals.
The respiratory and digestive systems depend on the pharynx. It enables the passage of breathed air from the nasal cavity to the lungs, larynx, and trachea.
The epiglottis is located in a region of the pharynx known as the nasopharynx. By keeping the esophageal opening covered, the air is kept out of the digestive system.
The complete question is:
What part of the body help the digestive system and respiratory system works together?
a. Lungs
b. Nose
c. Trachea
d. Pharynx
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Which component of a homeostatic system perceives changes in some parameter of the environment?.
Changes in one or more environmental parameters are detected by a sensor.
The act of maintaining a steady internal environment within an organism is described by what term?The upkeep of a constant interior environment is called homeostasis. An organism must maintain certain physical and chemical conditions for its component cells, tissues, organs, and organ systems to function correctly. This condition is known as homeostasis.
Which four components make up homeostasis?In spite of ongoing internal and external changes, living cells are able to maintain optimal conditions thanks to the four-part dynamic process known as homeostasis. A change, a receptor, a control center, and an effector are the four elements that make up homeostasis.
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the red bone marrow has two different types of stem cells that can differentiate into blood cells. these stem cells are .
Two separate types of stem cells that can develop into blood cells are present in the red bone marrow. Myeloid and lymphoid stem cells make up these stem cells.
Stem cells are the building blocks from which all other cells with specific roles are derived in the body.
Lymphoblasts, a type of blood stem cell in the bone marrow, evolve into lymphocytes, mature, infection-fighting cells. The primary cells that make up lymphoid tissue, a significant component of the immune system, are lymphocytes. The lymph nodes, spleen, thymus gland, tonsils, and adenoids all include lymphoid tissue.
A type of blood cell called a myeloid cell develops in the bone marrow. A myeloid cell will assume a specific role as a basophil, macrophage, eosinophil, erythrocyte, monocyte, neutrophil, or platelet as it develops into an adult blood cell.
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a diagnostic procedure to measure and record electrical activity in a muscle as the muscle is contracted and relaxed is abbreviated as a(n)
Electromyography is a diagnostic procedure to measure and record electrical activity in a muscle as the muscle is contracted as well as relaxed is abbreviated.
By stimulating a muscle with a nerve, electromyography (EMG) monitors the muscle's reaction or electrical activity. A neuromuscular abnormality can be found using the test. To evaluate the condition of muscles and the nerve cells that control them, a diagnostic procedure called electromyography (EMG) is used. According to EMG results, there may be issues with nerve-to-muscle signal transmission, muscle dysfunction, or both.
The function of the muscles and nerves is assessed using electromyography (EMG), a diagnostic procedure. The muscles are penetrated by small needles placed by the providers. The electrodes on the needles' ends track the activity of your muscles as you move them.
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which investigation will help determine whether the new membrane protein is a channel protein involved in membrane transport?
One investigation that could help determine whether the new membrane protein is a channel protein involved in membrane transport is to use patch clamping to determine if the protein is ionic.
This technique can be used to measure the ionic current flowing through a protein in a cell membrane. If the protein is ionic, it is likely that it is a channel protein. If the protein is not ionic, it is less likely that it is a channel protein.
Other investigations that could be done include looking at the protein's structure using X-ray crystallography or NMR spectroscopy to see if it has the characteristics of a channel protein, and performing mutagenesis experiments to see if the protein's function changes when mutations are introduced.
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A human skin cell has 46 chromosomes and undergoes mitosis. How many chromosomes will be present in each daughter cells when mitosis is complete?.
23 chromosomes will be present in each daughter cells when mitosis is complete.
What are chromosomes?Chromosomes are filamentous structures found in the nuclei of animal and plant cells.Each chromosome is composed of a single molecule of protein and deoxyribonucleic acid (DNA).DNA is passed from parent to child and contains the specific instructions that make each type of organism unique.Chromosomes are thread-like structures made up of single molecules of protein and DNA that carry genomic information from cell to cell.In plants and animals (including humans), chromosomes are located within the cell nucleus.Chromosomes are made up of proteins and DNA organized into genes.Each cell normally contains 23 pairs chromosomes.To learn more about chromosomes from the given link :
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Who said that that population would keep growing exponentially due to uncontrolled reproduction?.
What is photosynthesis about 3 lines?.
Plants, algae, and some microorganisms use the process of photosynthesis to convert sunlight into energy.
Water and carbon dioxide are chemically changed into food and oxygen during the process.
The pigment chlorophyll, which gives plants their green hue, is frequently used in the chemical reaction.
Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis.
Light energy is gathered and utilised during photosynthesis in green plants to change water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
The main purpose of photosynthesis is to transform solar energy into chemical energy, which is then stored for later use.
This mechanism primarily provides energy to the planet's life systems. By the norms of human engineering, it is not very effective, but it gets the job done.
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which of the following organisms is a heterotroph? which of the following organisms is a heterotroph? kelp cyanobacteria intestinal bacteria pond algae
The gram-negative bacteria known as cyanobacteria are special because they can perform photosynthesis, releasing oxygen into the atmosphere and fixing nitrogen.
A heterotrophic system is what?With heterotrophic feeding, organisms must obtain their nourishment from other species in order to survive. They are unable to manufacture their own food, just like green plants.
Which types of algae are heterotrophic?Heterotrophic microalgae may develop in the dark by utilising organic compounds as carbon and energy sources, in contrast to autotrophic microalgae, which rely on photosynthesis for growth energy. In order to grow, mixotrophic microalgae can utilise both light energy and provided organic carbons.
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What did scientists find in the bottom of the flask?
glucose
lipids
amino acids
Answer:
amino acids
Explanation:
What causes convection in the mantle?.
Internal heating from the decay of radioactive isotopes of uranium, thorium, and potassium, as well as long-term secular cooling of the earth and heat from the core, are the primary sources of thermal energy for mantle convection.
The movement of the mantle as it transfers heat from the white-hot core to the brittle lithosphere is described as mantle convection. The mantle is heated from below and cooled from above, and its overall temperature drops over time. All of these factors play a role in mantle convection.
Mantle convection is the slow creeping motion of the Earth's solid silicate mantle as convection currents transport heat from the interior to the planet's surface. The lithosphere of the Earth's surface sits on top of the asthenosphere, and the two make up the upper mantle. Hot rocks advect heat upward, while cold rocks advect cold downward; this counterflow is equivalent to an upward heat flux.
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In a gro
group, the gene for the Bekko patterning trait has
patterning (B) is dominant over the allele for not having Bekko patterning (b).
The Punnett square below shows a cross between two koi fish. Consider the phenotypes of
the offspring shown. Select one box that represents offspring that do not have Bekko
patterning.
B
b
b
Bb
bb
b
Bb
bb
The box with the recessive trait b that is bb do not have Bekko patterning..
By experimenting with pea plant breeding, Mendel evolved 3 standards of inheritance that defined the transmission of genetic traits, earlier than absolutely everyone knew genes existed. Mendel's perception substantially elevated the information of genetic inheritance, and caused the improvement of recent experimental methods.
Gregor Mendel, via his paintings on pea plants, located the essential legal guidelines of inheritance. He deduced that genes are available pairs and are inherited as awesome units, one from every parent. Mendel tracked the segregation of parental genes and their look withinside the offspring as dominant or recessive traits.
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which statement describes the effect of increasing drop height upon the force encountered by the egg when colliding with the surface?
The effect of increasing drop height upon the force encountered by the egg when colliding with the surface is Nonsense! The small egg never broke when dropped onto 1-inch foam.
A few not unusual synonyms of collision are concussion, effect, and surprise. whilst these kinds of words imply "a forceful, even violent contact between two or extra matters," collision implies the coming together of more matters with such pressure that both or all are broken or their progress is severely impeded.
Collision, additionally referred to as impact, in physics, is the sudden, forceful coming together in direct touch of two bodies, consisting of, for example, billiard balls, a golf club, a ball, a hammer and a nail head, railroad automobiles while being coupled together, or a falling object and a floor.
Colloids (additionally known as colloidal answers or colloidal structures) are mixtures wherein microscopically dispersed insoluble debris of one substance is suspended in any other substance. the scale of the suspended particles in a colloid can vary from 1 to one thousand nanometres (10-9 meters).
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which of the following is accurate regarding changes in gender typing during adolescence and adulthood:
Adulthood and adolescence. Within-individual variation in gender-typed behavior during the preschool years is highly associated to adolescent sexual, and is distinguishable from gender-related behaviors during each of them.
Are teenage years and adult years the same?The interval between childhood and adulthood is known as adolescence. It involves some significant adjustments to the body as well as how a young person interacts with the outside environment.
What three phases make up adolescence?Early adolescence, which typically lasts from ages eleven to fourteen, middle adolescence, which lasts from ages fifteen to seventeen, and late adolescence, which lasts from ages eighteen to twenty-one, can be roughly divided into three stages.
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What adaptations does the coyote brush possess that help it survive in the chaparral biome? (site 1)
The adaptations present in coyote brush that help it survive in the chaparral biome are: it takes shape according to the environment it grows in, its leaves are fire resistant and also has a large root system.
Coyote brush is a bushy plant also known by the name chaparral broom. It belong to the Asteraceae family and is the native of California. The scientific name of the plant is Baccharis pilularis.
Chaparral biome is a coastal region with very hot and dry summers and mild rainy winters. Since the rainfall is very minimal in these region, they are most prone to the summer fires. The biome can be found in California and northern Mexico. This is the reason the species living there have to make various adaptations.
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which group of proteins work in opposition to maintain the repressed and active transcription states of parent cells in daughter cells?
DNA methylation controls gene expression by either attracting proteins that are involved in gene repression or by preventing transcription factor(s) from binding to DNA.
What proteins have transcription control?Transcription factors (TFs) are regulatory proteins that bind to certain DNA regions to activate (or, less frequently, inhibit) DNA transcription. With up to 106-fold more affinity for their target sequences than for the rest of the DNA strand, TFs have distinct DNA-binding domains.
How do methyl groups influence the expression of genes?
DNA methylation controls gene expression by either attracting proteins that are involved in gene repression or by preventing transcription factor(s) from binding to DNA.
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Which division of the autonomic nervous system is also known as the thoracolumbar division?.
The sympathetic division, sometimes referred to as the thoracolumbar division, is made up of preganglionic neurons that are distributed along the whole length of the spine from segments T1 to L2.
What is the purpose of the spinal cord?
The spinal cord is a long system of neurons and tissues that extends from the base of the skull to the lower back.
What is the name of one of the 26 spinal bones?
The 26 bones which build up the spine are called vertebrae. Its vertebrae (12 bones), lumbar vertebra (5 bones), united sacral (one bone), and coccyx make up the next five vertebrae in the spine after the neck spine, who make up the very first five (one bone).
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Plant cells contain a green pigment called chlorophyll. Chlorophyll has a role in the process of photosynthesis. What does chlorophyll do
Explanation:
Plants and other photosynthetic organisms use chlorophyll to produce light (usually solar energy) and convert it into chemical energy.
Chlorophyll amplifies blue light and some red light.
which of the following correctly states what is occurring in this stage? chromosomes are attached to spindle microtubules and are aligned at the midpoint of the cell. spindle microtubules are starting to pull the chromosomes apart, pulling them toward the poles of the cell. chromosomes are visible, and one of the two centrosomes is starting to migrate to the other pole of the cell.
Chromosomes are threadlike structures made from protein and an unmarried molecule of DNA that serve to hold the genomic facts from cell to cell. In plants and animals (inclusive of humans), chromosomes are living within the nucleus of cells.
Two of the chromosomes (the X and the Y chromosome) determine your intercourse as male or girl while you are born. they're referred to as sex chromosomes: ladies have 2 X chromosomes. adult males have 1 X and 1 Y chromosome.
YY is not possible, due to the fact genes crucial for survival are placed on the X chromosome. (The X and Y chromosomes do not deliver best the genes that code for improvement. There are genes at the X that determine everything from cell metabolism to the formation of color receptors within the retina.)
In human beings, every cell normally carries 23 pairs of chromosomes, for a complete forty-six. Twenty-two of these pairs referred to as autosomes, look the same in both ladies and men. The twenty-third pair, the intercourse chromosomes, ranges between women and men.
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Why will the microbiota in the vagina of a woman of reproductive age differ from that of the same woman before puberty and after menopause?.
Significant amounts of glycogen are present in the vagina during the reproductive years, and Lactobacillus acidophilus ferments this glycogen to form lactic acid, which creates an acidic environment. Prior to and following menopause, glycogen is missing.
Describe Leukocidins.The bi-component -barrel pore-forming toxins, commonly referred to as leukocidins, are a significant group of S. aureus virulence factors. By engaging with certain receptors expressed on the cell membrane, these pore-forming toxins target particular cells of the innate and adaptive immune systems.
What creates the oil that skin microorganisms prefer to live in?Sebaceous glands produce the lipid-rich substance sebum by creating the pilosebaceous unit with the hair follicle.
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What are 6 conditions that allow bacteria to grow in food?.
Bacteria want moisture so one can grow. that is why they grow on meals with excessive moisture content such as fowl. meals that are dehydrated or freeze-dried may be stored for a whole lot longer as the moisture has been eliminated. food – meals afford electricity and nutrients for micro organism to develop.
Bacteria reproduce by way of splitting into two. This manner is known as binary fission and the time taken between every department (technology time) varies notably depending on, among different matters, temperature and the nutrients (meals) to be had.
A bacterial contamination happens when bacteria input the frame, growth in variety, and cause a response inside the frame. bacteria can enter the frame through an opening for your pores and skin, consisting of a reduce or a surgical wound, or via your airway and reason infections like bacterial pneumonia.
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involved in the growth, maintenance &
repair of body tissues.
