Answer:
9 amino acids are considered essential because the body cannot produce them.
Explanation:
The 9 amino acids your body cannot produce on its own are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
These acids you must get from your diet (what you eat). That is why they are considered essential.
which of the following statements about the condition shown in the u-shaped tube are true?
The statements which are true about the condition shown in the u-shaped tube are:
There is less free water in the right arm of the tube than in the left arm of the tube.Water is tightly clustered around the hydrophilic solute molecules on both sides of the membrane.The correct answer choices are options a and b.
What is meant by U-shaped tube?
In the tube above, there is less free water in the right arm of the tube than in the left arm of the tube because the concentration of sugar is is lower in the right arm than in the left arm.
This is a tube whose shape is in U form and usually used contains either mecury or water to measure atmospheric pressure.
So therefore, the statements which are true about the condition shown in the u-shaped tube are:
There is less free water in the right arm of the tube than in the left arm of the tube.Water is tightly clustered around the hydrophilic solute molecules on both sides of the membraneComplete question:
Which of the following statements about the conditions shown in the U-shaped tube are true?
a. There is less free water in the right arm of the tube than in the left arm of the tube.
b. Water is tightly clustered around the hydrophilic solute molecules on both sides of the membrane.
c. There is more solute in the left arm of the tube than in the right arm.
d. Solute can pass through a selectively permeable membrane from right to left but free water cannot pass.
Learn more about U-shaped tube:
https://brainly.com/question/7951138
#SPJ1
All of the following statements are true about STI'S EXCEPT:
A. Hepatitis B can cause jaundice.
B. Syphilis affects the brain and central nervous system.
C. Using a condom can protect against all STI's.
D. Gonorrhea and chlamydia can be successfully treated with antibiotics.
Answer:
A.Hepatitis B ca cause jaundice
2) TRUE or FALSE: If everyone in a neighborhood applies fertilizer to their lawn, they could fall into
The Tragedy of the Commons. (Remember fertilizer pollutes waterways and can harm fish and other
wildlife)
If everyone in a neighborhood applies fertilizer to their lawn, they could fall into The Tragedy of the Commons. TRUE
The tragedy of the commons is an economic problem of over-consumption, under-investment, and ultimately depletion of common resources. The tragedy of the commons is a situation in which individual users who have free access to resources are not constrained by shared social structures or formal rules governing access.
The tragedy of the commons is caused by externalities. When family herds graze on common land, the quality of land available to other families is reduced. Humans ignore this negative externality when deciding how many sheep to own, resulting in an overabundance of sheep. Fertilization can affect the accumulation of heavy metals in soil and plant systems. Plants can absorb fertilizer through the soil and enter the food chain.
Learn more about fertilizer here:-https://brainly.com/question/24544067
#SPJ1
How did Rosalind Franklin’s work change the way we think about DNA? 3-4 sentences
Rosalind Franklin demonstrated that the molecule existed in a helical configuration and, more significantly, identified the density of DNA.
What was discovered by Rosalind Franklin's DNA experiment?It was developed by Rosalind Franklin using an approach called X-ray crystallography and showed the DNA molecule's helical structure.
Rosalind Franklin was a British scientist who is primarily remembered for her contribution to the understanding of DNA's structure. The use of X-ray diffraction was also pioneered by this remarkable woman. She overcame social and personal conflict to achieve one of science's most important discoveries.
Rosalind published her research in the scholarly magazine Nature in April 1953. James Watson and Francis Crick, two Cambridge physicists, revealed their double helix model of DNA in another article that appeared
learn more about Rosalind Franklin's DNA refer
https://brainly.com/question/2367833
#SPJ9
A cell's interior is considered isotonic to the surrounding fluid when:
Answer: When the solute concentrations are the same within and outside the cell.
Explanation: Isotonic is when the osmotic pressure is the same in one solution as another. In this case, on the outside and inside of the cell.
Stickleback fish are collected from a lake in Alaska. 600 from the sample are
spineless, which is a recessive trait in the fish. 80 of the fish collected have
spines. Calculate:
A. The frequency of recessive alleles in the population (q)
B. The frequency of dominant alleles in the population (p)
C. The percentage of individuals in the population that are heterozygous:
D. Provide an explanation for why so many fish in the lack display the recessive
trait
The predominant allelic frequency is the allelic frequency of the recessive gene, the genotypic frequency of homozygous dominants (p2), genotypic frequency of homozygous recessives (q2), 2pq the genotypic frequency of heterozygotes
These allelic frequencies add up to 1, so p + q = 1. Likewise, the genotypic frequencies add up to 1, so p2 + 2pq + q2 = 1.
q² = 600/680 = 0.882
We can determine the recessive allele if q2 represents the homozygous recessive genotypic frequency. by removing the equation, frequency
q= √0.882 = 0.939
We will receive both homozygous and heterozygous phenotypic frequencies.
p+ q =1
p=0.061
Knowing that 2pq is the heterozygous genotypic frequency, we can quickly compute it by substituting the following terms for:
2pq=2 x 0.061 x 0.939 = 0.115.
Directional selection increases the percentage of people who have one of severe phenotypic characteristics This trait makes people more likely to survive in particular circumstances. Additionally, genetic drift might be in play. Allelic frequencies in a population shift over many generations due to genetic drift, an evolutionary mechanism. Its impacts are more difficult to see in a small population.
Learn more about Frequency here-
https://brainly.com/question/5102661
#SPJ9
HELP PLEASE DUE SOON! QUESTION BELOW! IM SO CONFUSED I DONT EVEN KNOW WHERE TO START!
The poem illustrating the effect of the sympathetic nervous system and the parasympathetic nervous system on Sally is:
My heart races like a sprinterEvery time my eyes sets on himBe calm I pray you little sisterOne day you'll wake from this dreamWhat is the nervous system?The nervous system is the system of the body that controls how the body receives, processes and transmit information to the different part of the body.
The nervous system can be said to be the control center of the body.
The sympathetic nervous system and the parasympathetic nervous system are parts of the peripheral nervous system which have opposing effects.
The sympathetic nervous system keeps the body alert by activating the body's “fight-or-flight” response. The hearts beats faster, the respiratory rate increases, and the pupils dilate.
The parasympathetic nervous system relaxes the body after periods of stress or danger. The hearts beat normal, the respiratory rate normalizes, and the pupils constrict.
In conclusion, the sympathetic nervous system and the parasympathetic nervous system have antagonistic effects.
Learn more about sympathetic nervous system and the parasympathetic nervous system at: https://brainly.com/question/12961611
#SPJ1
Describe one of the disorders discussed in the chapter including the signs and symptoms, etiology and treatment for genetic and congenital disorders
Congenital disorders are present from birth, and hereditary disorders are transmitted from parents to their children through the genes. There are many different types of congenital and hereditary orthopedic disorders, and in most cases, children respond very well to treatment.
What are the symptoms of genetic disorders?
Symptoms vary depending on the type of disorder, organs affected and how severe it is.
Genetic disorders can be:Chromosomal: This type affects the structures that hold your genes/DNA within each cell (chromosomes). With these conditions, people are missing or have duplicated chromosome material.Complex (multifactorial): These disorders stem from a combination of gene mutations and other factors. They include chemical exposure, diet, certain medications and tobacco or alcohol use.Single-gene (monogenic): This group of conditions occurs from a single gene mutation.What is treatment for genetic disorders like?
Most genetic disorders do not have a cure. Some have treatments that may slow disease progression or lessen their impact on your life.
Learn more about genetic disorders in brainly.com/question/17404085
#SPJ1
An online fingerprinting kit advertises that the fingerprinting powder detects "oil" left behind by
fingertips. Is this accurate? Why or why not?
Fingerprinting powder is a method used to detect fingerprints. It sticks to oil and sweat secreted by the skin. Yes, the statement is accurate. The fingerprinting powder detects "oil" left behind by fingertips.
What is a fingerprint and how is it used in criminology?
The fingerprint is a mark of the finger skin left on different surfaces. It is called print because it leaves the exact shape and pattern of the skin ridges. This pattern is known as dermatoglyphics.
Dermatoglyphics is significant because
they are unique to each person. What is more, each finger has its own skin ridges pattern. they are permanent and do not change. The pattern is the same throughout the individual's life.
Because of these two characteristics, fingerprints are a reliable tool during a crime scene.
Fingerprints results from oily secretions and sweat produced naturally by the skin. Since these are invisible, they are not detected at simple sight.
The fingerprinting powder is a useful method to detect fingerprints on certain surfaces, making them evident. Once identified, forensics lift the prints from surfaces and take them to the laboratory for further analysis.
Because of finger secretion, oil and sweat react with the powder and make the print visible by contrast. The powder sticks to the secretions but not to the clean background, making dermatoglyphics visible when applied.
Yes, the statement is accurate. The fingerprinting powder detects "oil" left behind by fingertips.
You can learn more about fingerprinting powder at
https://brainly.com/question/15221897
https://brainly.com/question/21695699
https://brainly.com/question/2117464
#SPJ1
Which of the following would be an example of how science has impacted society?
a. Lifesaving discoveries like antibiotics
b. Conservation of resources like the rainforests
c. Technologies that have improved human lives like refrigerators, a/c and the internet
d. All of the above
Answer:
d. All of the above
Explanation:
Describe Claire’s symptoms. Explain how they were related to metabolism and homeostasis.
Claire's symptoms indicate that she has recently stopped enjoying her employment, which she used to really enjoy because of her impaired vision.
What impact of homeostasis on metabolism?The process of metabolism helps an organism's body and cells stay healthy by involving different chemical reactions that aid in obtaining, storing, and using energy.
All the ongoing chemical reactions inside your body that support life and regular function are referred to as metabolism (maintaining normal functioning in the body is called homeostasis)
Homeostasis and metabolism are interconnected because both are necessary for efficient metabolism and for the maintenance of homeostasis.
In order for metabolism to function effectively, homeostasis must exist. Additionally, one method the body maintains homeostasis is through efficient metabolism.
Therefore, Metabolism and homeostasis are related to each other.
Learn more about homeostasis here:
https://brainly.com/question/280631
#SPJ2
What is the arrangement of chromosomes in an oocyte in a female at birth if the species has a diploid number of 20? Hint: Recall which phase of the cell cycle oocytes are arrested at in a female prior to births
Multiple Choice
20 chromosomes, each with two sister chromatids
10 chromosomes, each with two sister chromatids
20 undupliceted chromosomes
10 unduplicated chromosomès
The arrangement of chromosomes in an oocyte in a female at birth if the species has a diploid number of 20 is 10 chromosomes, each with two sister chromatids.
What is chromosome ?Chromosomes are molecules which are made up of DNA nucleic acid and some proteins, it carry all the genetic information to be transported to next generation.
Here DNA is tightly packed and wrapped around histone proteins which form a structure called threadlike form called chromosome.
Humans have 46 chromosomes, where half of the chromosome are 23 chromosomes.
Learn more about chromosome, here:
https://brainly.com/question/10234301
#SPJ1
QUESTION 17
The layer of the Earth in which most of the rocks and minerals will begin melting within is the:
OA. Asthenosphere
OB. Inner Core
OC. Lithosphere
OD. Mantle
OE. Outer Core
Which is the order of these biological objects from least complex to more complex?
The order of these biological objects from least complex to more complex is R, Q, T, S (option A).
How are organisms arranged hierarchically?Living organisms are made up of building blocks. The level of organization of life is the hierarchical arrangement of components that make up living organisms.
The hierarchical level of organization in the ascending order i.e. simplest to most complex is as follows:
OrganellesCells TissuesOrgansOrgan systemsOrganismsAccording to this question, these components are assigned letters/alphabets that are represented as follows:
Q - cellR - organelleS - multicellular organismT - organTherefore, the order of these biological objects from least complex to more complex is R, Q, T, S.
Learn more about level of organization at: https://brainly.com/question/14501995
#SPJ1
The Phanerozoic eon has three eras. Match each era with the appropriate characteristic or event.
1. Paleozoic era
2. Mesozoic era
3. Cenozoic era
time of the dinosaurs
largest mass extinction in Earth's
history
sometimes called "Age of
Mammals"
1. Paleozoic Era ⇒ largest mass extinction in Earth's
history
2. Mesozoic era ⇒time of the dinosaurs
3. Cenozoic era ⇒sometimes called "Age of
Mammals"
Three eras—the Paleozoic, Mesozoic, and Cenozoic eras—make up the Phanerozoic Eon.
The Paleozoic Era is known as the era of "ancient life." Six distinct stages were split between 544 and 245 million years ago (see the Figure below). The beginning of the era was marked by a magnificent surge of new life. It's called the Cambrian explosion. The end of the time period was marked by the biggest mass extinction the planet has ever seen.During the Mesozoic, or "Middle Life," era, the Earth was home to huge species such as dinosaurs, giant reptiles, and other creatures. It spanned 252 million years ago to roughly 66 million years ago and was also known as the age of reptiles or the age of dinosaurs.Because animals were the largest during the Cenozoic era, it is known as the "age of mammals."To learn more about Phanerozoic era refer- https://brainly.com/question/996147
#SPJ9
Many species of mushroom look similar. One way to identify mushrooms is by their spore print. Mushroom hunters set the cap from a mature mushroom on a piece of paper or aluminum foil. Over the next few hours, spores fall out of the mushroom, making a spore print. Both the color and the pattern of the spore print help to identify the species of mushroom.
The correct words to complete the sentence, and the completed sentence are; Mushrooms are fungi that use spores for reproduction.
What are fungi?Fungi is a kingdom made up of a group of organisms that include molds, yeasts, and fungi. They are heterotrophic organisms that have cell walls. Fungi cannot form their own nutrients so they live as parasites on the plants and animals around them. The fungi that form in humans can coexist in these without causing any infection, but some can produce them. Fungi can reproduce using spores and disperse until they find favorable conditions to germinate.
Therefore, we can confirm that mushrooms are fungi that use spores for reproduction.
To learn more about fungi visit:
https://brainly.com/question/1287565
The complete question states:
Many species of mushrooms look similar. One way to identify mushrooms is by their spore print. Mushroom hunters set the cap from a mature mushroom on a piece of paper or aluminum foil. Over the next few hours, spores fall out of the mushroom, making a spore print like the ones pictured. Both the color and the pattern of the spore print help to identify the species of mushroom. Choose one word from the first column and one word from the second column that correctly completes the sentence.
Mushrooms are ____________________ that use spores for ______________________.
Bacteria
Reproduction
Fungi
Waste
Elimination
#SPJ1
How are humans and animals directly or indirectly dependent on plants?
Answer:
thanks for your question.
human and animal are directly or indirectly dependent on plants .The reason is very clear. look that, to alive human and animal needs oxygen which is very important for our and animal life. We can't live without it. And this important things are come from plants. By taking carbon-dioxide and suns light from our environment they makes the important things which is oxygen. Without they also gives us fruit, food and protection from natural disaster
Explanation:
that's why human and animal are directly or indirectly dependent on plants
Which of the following is NOT a macroscopic property of hair?
a. Length b. Types of scales on the medulla
c. Texture d. Thickness
Answer:
length. anyone can choose to have long hair
Please help me sort these !!!!
What is the function of the synovial fluid in a freely movable joint?
A. To fuse the joint
B. To cushion the joint
C. To lubricate the joint
D. To hold the joint together
If the difference between the wet-bulb and the dry-bulb temperature is 4 and the dry-bulb temperature is 14, what is the dew point temperature?
The dew point temperature is 6°C when the difference between wet-bulb and dry-bulb temperatures is 4°C and the dry-bulb temperature is 14°C.
To calculate the dew point temperature, a table is used instead of a formula. To determine the dew point temperature the dry-bulb temperature (which is 14°C in this case) on the left side of the table is noted and then the difference between wet-bulb and dry-bulb temperatures, i.e. 4°C is noted given on the top of the table. Now the cell where these row and column meet gives the value of the dew point temperature, which comes out to be 6°C.
To learn more about dew point temperature here
https://brainly.com/question/11375358
#SPJ1
9._____ is the amount of energy that must be supplied to get a chemical reaction started.
Reactant energy
Endothermic energy
Activation energy
Exothermic energy
Activation energy is the amount of energy that must be supplied to get a chemical reaction started.
What is Activation energy?The activation energy is the first and minimum amount of energy input that is used in the reaction to start it and later returned.It is denoted by [tex]E_{A}[/tex].
[tex]E_{A}[/tex] always has a positive value – independent of whether the reaction is endergonic or exergonic overall.
The primary source of activation energy is heat, which reactant molecules absorb from their environment. This heat energy jolts the atoms and bonds within the individual molecules, raising the likelihood that bonds will break, and speeds up the velocity of the reactant molecules, increasing the frequency and force of their encounters.
To know more about activation energy visit : https://brainly.com/question/2410158
#SPJ9
HELP ME PLS
Think about the role of both biotic and abiotic factors within an ecosystem.
Describe a scenario in which one abiotic or biotic factor is added or removed from an ecosystem.
Explain the possible side effects on that ecosystem.
Be sure to –Address the prompt, provide support, and conclude your thoughts.
Deforestation may lead to the loss of fundamental producer organisms (biotic factors) in the ecosystem, while drought conditions (abiotic factors) may also alter the equilibrium of the ecosystem.
What are biotic factors and abiotic factors?Biotic factors are presented by all organisms that form a community living in a particular ecosystem, while abiotic factors are all conditions (e.g., temperature, water availability, etc) that shape the structure of the ecosystem by interacting with the community.
In conclusion, deforestation may lead to the loss of fundamental producer organisms (biotic factors) in the ecosystem, while drought conditions (abiotic factors) may also alter the equilibrium of the ecosystem.
Learn more about biotic factors and abiotic factors here:
https://brainly.com/question/12689972
#SPJ1
Previous research shows that, in humans, the pelvic opening tends to be wider in females than it is in males.
Females have broader pelvises because they have anatomical characteristics that enable childbearing.
A hypothesis is a put forth explanation for certain real-world phenomena. A scientific theory must be put to the test through experiments or observation.
A strong hypothesis must meet two essential criteria. One requirement is that it must be testable, or able to be established by the scientific method, and another is that it must be falsifiable, or have a potential opposite conclusion.
Females have broader pelvises because they have anatomical characteristics that enable childbearing. A study was conducted to see if the pelvic size is related to labor and delivery issues. Smaller-pelvic women frequently experience complications during labor, to ethnicity, age, and other demographic biases in the data.
To learn more about ethnicity refer to:
https://brainly.com/question/11916588
#SPJ9
Which scenario is most likely to occur by passive transport?
Responses
movement of large, non-polar molecules across the cell membrane against their concentration gradient
movement of large, non-polar molecules across the cell membrane against their concentration gradient
movement of large, polar molecules across the cell membrane with their concentration gradient
movement of large, polar molecules across the cell membrane with their concentration gradient
movement of small, non-polar molecules across the cell membrane with their concentration gradient
movement of small, non-polar molecules across the cell membrane with their concentration gradient
movement of small, polar molecules across the cell membrane against their concentration gradient
The scenario that is most likely to occur by Passive transport is the movement of small, non-polar molecules across the cell membrane with their concentration gradient. Thus, the correct option for this question is C.
What is Passive transport?Passive transport may be defined as a type of transport that significantly occurs along the concentration gradient without the use of metabolic energy. Passive transport is divided into two types, i.e. Simple diffusion and facilitated diffusion.
In simple diffusion, no transporters are needed and depend on the chemical gradient while facilitated diffusion is a carrier or transporters mediated diffusion which depends on the electrochemical gradient. The mechanism of passive transport is spontaneous i.e. no need for energy from outside.
Therefore, the correct option for this question is C.
To learn more about Passive transport, refer to the link:
https://brainly.com/question/17293052
#SPJ2
4. Twenty percent of the air breathed in consists of oxygen. Sixteen percent of the amount of oxygen entering air breathed out, consists of oxygen .Catulate the blood per breath after running.
The air that is breathed in contains oxygen in a concentration of 20% while the air exhaled still contains oxygen in a concentration of 16%. This implies 4% oxygen has been absorbed by the blood cells per breath.
Even though 16% of the oxygen in the air is exhaled, hemoglobin is 100% saturated with oxygen.We only exhale 16% of the oxygen we breathe in because some parts of our lungs are not actively engaged in gas exchange.The conducting parts of the airways that do not take part in the exchange of oxygen and carbon dioxide include the nose, mouth, and windpipe, for instance. They only move air from the atmosphere to the interior of the lungs. The distal-most air sacs, known as the alveoli, where gas exchange takes place, are the functioning parts of the lungs.Therefore, the air from the nose, mouth, and windpipe still contains all of the oxygen when we exhale, and this accounts for the 16% of oxygen that is lost during breathing.
Learn more about respiration here:
https://brainly.com/question/1602229
#SPJ9
How many oxygen atoms are in the products of the following reaction? C6H12O6+6H2O+6O2→6CO2+12H2O
Answer:
24
Explanation:
count the oxygens right of the arrow… 6CO2 would have 12 oxygen atoms because CO2 has 2 and there are 6 of them. 12H2O has 12 because H2O has 1 oxygen atom. 12+12 = 24
which snail species had a higher population in part one? which adaptations aided in their survival?
Answer:
it would be the Tasmanian snail
Explanation:
from the Brazilian forests they survived off the algy and moistness
For children who do not have galactosemia, what are their possible genotypes for this trait?
The autosomal recessive mode of inheritance for galactosemia. Galactosemia is an autosomal recessive disorder in which one normal gene and one defective gene are present in each parent of a galactosemic child.
Disruptions or a gene cause galactosemia. Galactosemia develops as a result of disruptions or alterations (mutations) in the GALT gene, which leads to a lack of the GALT enzyme. Galactosemia indications, symptoms, and clinical findings result from the abnormal accumulation of molecules connected to galactose in numerous organs of the body. when an enzyme that breaks down galactose is produced by different (mutated) genes. In order to have galactosemia, a kid must inherit two galactosemia genes, one from each parent. Galactose and its derivatives accumulate in the blood when a person has galactosemia. Cells and body parts may be harmed by this.
Learn more about Galactosemia
https://brainly.com/question/14151596
#SPJ9
Which of the
following is an example of a hydrogen bond?
a. The pentide bond between amino acids in a protein
b. The bond between an oxygen atom and a hydrogen in the carboxyl group of a fatty acid
c. The bond between Na* and Cl' in salt
d. The attraction between a hydrogen of one water molecule and the oxygen of another
water molecule
Answer: a
Explanation:
