Amino acids are used to build
Answer:
Hello!
Explanation:
[tex]⭐ \red{\textbf{amino \: acids \: are \: used \: to \: build}}[/tex]
Amino acids are organic compounds that combine to form proteins.Amino acids are organic compounds that combine to form proteins. The human body uses amino acids to produce proteins to help the body break down food.
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atte:
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Answer:
Proteins.
Explanation:
"For a brick, He flew pretty good" - Sargent Avery Johnson
What are some changes that farmers could have made to their agricultural practices to avoid the Dust Bowl?
Answer:
Other helpful techniques include planting more drought-resistant strains of corn and wheat; leaving crop residue on the fields to cover the soil; and planting trees to break the wind.
What is an example of nonsense mutation in biology?
An example of a nonsense mutation is in cystic fibrosis, where the amino acid phenylalanine is replaced with a stop codon in the CFTR gene, resulting in a nonfunctional protein that leads to a buildup of mucus in the lungs and other organs. Another example is hemophilia A, which is caused by a nonsense mutation in the F8 gene that results in the production of a truncated, nonfunctional protein product.
A nonsense mutation refers to a type of mutation that results in a premature stop codon, thereby terminating the translation of the protein before it is complete. It can be a point mutation, in which a nucleotide substitution changes a codon that normally encodes an amino acid to one of the three stop codons: UAA, UAG, or UGA.
The stop codons signal the end of the protein sequence, and the protein is terminated prematurely as a result. As a consequence, the protein is usually nonfunctional or partially functional. This mutation can result in a shortened protein product with little or no activity, depending on the location of the mutation in the gene.
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22. What is the advantage of cells being so small?
A. Small cells contain a greater quantity of enzymes than large cells.
B. Small cells do not require energy and get everything they need from osmosis.
C. The cell has a smaller surface area to volume ratio which means it can move nutrients into
the cell and waste out more efficiently.
D. The cell then has a larger surface area to volume ratio which means it can move nutrients
into the cell and waste out more efficiently.
PLEASE EXPLAIN WHY
Answer:
B. Small cells do not require energy and get everything they need from osmosis.
Explanation:
Small cells contain a greater quantity of enzymes than large cells. The cell has a smaller surface area to volume ratio which means it can move nutrients into the cell and waste out more efficiently.
which group of genes in drosophila embryos must be mutated if the result is elimination of a significantly sized, contiguous region of segmentation?
The group of genes in Drosophila embryos must be mutated if the result is the elimination of a significantly sized, contiguous region of segmentation is gap genes.
What are gap genes?
Gap genes are a group of genes that are expressed throughout the central region of the Drosophila embryo. Gap genes, along with other segmentation genes, are responsible for establishing the boundaries between segments in the developing Drosophila embryo. Gap genes are classified into three broad categories: anterior, middle, and posterior, based on their expression patterns.
Gap genes in Drosophila are required for correct patterning of the anterior-posterior axis of the embryo. Gap genes are necessary for defining the broad regions of segmentation, which are then subdivided into smaller regions by pair-rule genes. The proper patterning of the Drosophila embryo requires the activity of gap genes.
In contrast to maternal genes, which establish the anterior-posterior axis of the embryo, gap genes define large, contiguous regions of the developing embryo and are necessary for setting up the basic body plan.
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What is the effect of slow climate change?
Answer: Climate change also increases the appearance of more violent weather phenomena, drought, fires, the death of animal and plant species, flooding from rivers and lakes, the creation of climate refugees and destruction of the food chain and economic resources, especially in developing countries.
Explanation: Hope this helps
Match each characteristic to the synthesis or oxidation of fatty acids.
Fatty acid synthesis:
-occurs in the cytoplasm
-Uses NADPH
-Acyl carrier protein is the acyl carrier
-involves the conversion of a carbonyl to a methylene
-Enzymes are organized in a multienzyme complex
Fatty acid oxidation:
-Uses NAD+
-Uses FAD
-Occurs in the mitochondria
-Coenzyme A is the acyl carrier
-Involves the conversion of a methylene to a carbonyl
Fatty acids are long-chain hydrocarbons having a carboxylic acid functional group. The oxidation of fatty acids provides energy to the body, while their synthesis helps in the production of lipids and the provision of energy for cells.
Decide whether a characteristic corresponds to fatty acid production or oxidation. The conversion of a carbonyl to methylene occurs during fatty acid production, which takes place in the cytoplasm and utilizes NADPH. Enzymes are arranged in a multienzyme complex during fatty acid oxidation. The acyl carrier is Coenzyme A, and the process involves converting methylene to a carbonyl. The processes of fatty acid synthesis and fatty acid oxidation have different features, as shown below: NADPH is utilized throughout the cytoplasmic process of fatty acid production.
In this mechanism, the acyl carrier protein acts as the acyl carrier. A carbonyl is transformed into methylene during this procedure. In this process, the enzymes are also arranged in a multienzyme complex. The mitochondria are where fatty acids are oxidized. NAD+, FAD, and Coenzyme A are utilized in this process, and the acyl carrier is Coenzyme A. The procedure entails changing methylene into a carbonyl. Therefore, it is possible to distinguish between the processes of fatty acid synthesis and oxidation using the above features.
Acetyl-CoA and malonyl-CoA are the starting materials for the process of fatty acid synthesis, which produces fatty acids. It takes place in the cell cytoplasm and is in charge of fatty acid synthesis. Fatty acid oxidation, on the other hand, is the process through which fatty acids are burned off to produce energy for the body. It happens in cellular mitochondria.
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Once anything passes through the event horizon, from the perspective of that
object, nothing would change.
True or false
Answer:
True
Explanation:
The event horizon of a black hole is where gravity is such that not even light can escape. This is also the point I understand that according to Einstein time dilation will be infinite for a far-away-observer.
The statement "once anything passes through the event horizon, from the perspective of that object, nothing would change" is true.
What is horizon?The horizon would be the line that appears to divide a celestial body's ground from its own sky when observed by an observer standing on or close to the body's surface.
What is event?An event would be the collection of results from an experiment.
Therefore, the statement "once anything passes through the event horizon, from the perspective of that object, nothing would change" is true.
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Courtney and Kenzie are doing an experiment to determine which fish food gives their fish more energy. They have two fish tanks, each with the same number, size, and type of fish. The tanks are the same size and have identical filters and decorations. They were both filled with store-bought spring water and are cleaned at the same time. When the girls submitted their results to a journal for publication, scientists criticized the experiment.
What about the experiment would need to be changed so that scientists might accept their findings?
A) The fish would need to be fed more food.
B) The tanks would need more fish in each one.
C) There would need to be several more tanks of fish.
D) The tanks would need to have a different type of water
When Courtney and Kenzie submitted their results to a journal for publication, scientists criticized the experiment. The experiment would need to be changed so that scientists might accept their findings by having several more tanks of fish.
Why would they need to change their experiment? Scientists criticized the experiment because it is not possible to determine which fish food gives their fish more energy just from two tanks of fish. Having more tanks of fish would mean that the study is more precise and closer to what could happen in the real world. This will result in more precise findings to support or reject the hypothesis that the fish food gives their fish more energy. Therefore, it can be concluded that C) There would need to be several more tanks of fish is the correct option.
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Antibodies start the inflammatory response. True or False?????????
Answer:
True
Explanation:
What are the 3C’s that plant cells have, but animal cells lack?
Answer:
Cell wall, Chloroplasts, Central vacuole
Explanation:
Answer: cell wall, chloroplast, central vacuole,
Explanation:
A green rat snake that lives in the grass and a brown rat snake that lives in the desert is a form of _______________
a
genetic engineering
b
natural selection
c
selective breeding
d
simple variation
Answer:
Natural selection
Explanation:
Hope this helps :)
The diagram below shows a diploid cell with two homologous pairs of chromosomes. Due to independent assortment and crossing-over, the possible allelic combinations that could be found in gametes by the meiotic division of this cell are _________________.
A
Bb, Dd, BB and DD
B
BD, bD, Bd and bd
C
BBDd and BDbd
D
Bd and bD only
Due to independent assortment and crossing-over, the possible allelic combinations found in gametes by the meiotic division of this cell are B and D can be on one chromosome, while b and d can be on the other. Therefore, the correct answer is (B) BD, bD, Bd, and bd.
What is crossing-over?Crossing-over is a process that occurs during meiosis, the cell division process that produces gametes (sperm and egg cells) in sexually reproducing organisms. During crossing-over, homologous chromosomes exchange genetic material, resulting in the creation of new combinations of alleles.
What is the law of independent assortment?The law of independent assortment is a fundamental principle in genetics that describes how different genes are inherited independently. Gregor Mendel first proposed this principle.
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think of something that would make your life easier, anything from an automatic toothpaste dispenser to an awning that opens up when it senses rain, and imagine how you could actually create it. do you agree with massimo that the arduino makes microcontrollers and coding available to anyone, regardless of experience?
Yes, I agree with Massimo that Arduino makes microcontrollers and coding available to anyone, regardless of experience. Arduino is an open-source electronics platform that provides a user-friendly environment for creating and programming interactive projects.
It simplifies the process of hardware prototyping and allows individuals with little to no prior experience in electronics or programming to dive into the world of microcontrollers.
To create a helpful device like an automatic toothpaste dispenser, Arduino can be a valuable tool.
With Arduino, you can connect sensors, actuators, and other components to build a system that detects the presence of a toothbrush and dispenses an appropriate amount of toothpaste automatically.
Arduino's extensive library of pre-built functions and the availability of countless tutorials and examples online make it easier for beginners to understand and implement such projects.
Arduino's simplicity and versatility have contributed to its popularity among hobbyists, students, and professionals alike. It has democratized access to microcontroller technology and coding by providing an accessible platform that encourages creativity and innovation.
Whether it's creating automated home systems, robotics, or interactive artworks, Arduino opens up possibilities for individuals from diverse backgrounds to turn their ideas into reality.
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1. A biologist was in a forest when he came across a family of squirrels hiding nuts for the winter. The biologist was interested in this behavior, so he stayed and watched the squirrels for a few hours. He recorded what he observed in a notebook. Which of the following explains why this type of research is NOT considered an experiment?
A. The biologist observed the squirrels and did not test variables.
B. The biologist came across the squirrels by chance and had no formal plan.
C. The biologist did not observe the squirrels for long enough to collect data.
D. The biologist did not collect valid data on the different species of squirrels present.
2. For pea plants, T represents a dominant allele for tall pea plants and t is the recessive allele for short pea plants. If two plants with the Tt genotype are crossed, what is the probability that offspring will exhibit the dominant trait?
A. 75%
B. 100%
C. 25%
D. 50%
3. Which statement is true about DNA?
A. DNA is an exact copy from parent to offspring
B. DNA contains genes that hold specific traits for an organism
C. DNA is not necessary for an organism to reproduce
D. Organisms create their own DNA sequence that is not like their parents
The biologist observed the squirrels and did not test variables. If two plants with the Tt genotype are crossed, 50% is the probability that offspring will exhibit the dominant trait. The correct options are A, D, and B respectively.
What is genetics?The study of genes, genetic variation, and heredity in organisms is known as genetics. It is an important branch of biology because heredity is essential to the evolution of organisms.
An experiment entails manipulating variables to see how they affect a dependent variable. In this case, the biologist observed and recorded what he saw rather than manipulating any variables.
Both plants in this scenario are heterozygous (Tt) for the tall trait, which means they each have one dominant allele (T) and one recessive allele (R) (t).
When they are crossed, each offspring has a 50% chance of inheriting the dominant T allele and displaying the dominant trait of tallness, as well as a 50% chance of inheriting the recessive T allele and displaying the recessive trait of shortness.
DNA (deoxyribonucleic acid) is a molecule that contains the genetic instructions for the development, function, growth, and reproduction of all living organisms.
Thus, the correct options are A, D, and B respectively.
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fitb. quizlet the air pressure normally ____ before a cold front passes and ____ after a cold front passes.
fitb. Quizlet: The air pressure normally decreases before a cold front passes and increases after a cold front passes.
Before a cold front passes, there is typically a decrease in air pressure. This is because a cold front is associated with the movement of a mass of colder air replacing a mass of warmer air. As the colder air advances, it displaces the warmer air, leading to a decrease in air pressure.
After a cold front passes, there is generally an increase in air pressure. This is because the cold front brings in denser and cooler air, which sinks and creates higher pressure at the surface. The cooler air is often more stable, leading to clearer skies and higher pressure conditions.
It's important to note that these patterns are generalizations and can vary depending on specific weather systems and local conditions. Other factors, such as wind patterns and atmospheric disturbances, can also influence air pressure changes associated with cold fronts.
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Lyme disease, rabies, and malaria are mostly spread bya.bites from animals, such as dogs and mosquitoes.b.contaminated foods, like chicken and beef.c.contaminated objects, like doorknobs.d.indirect contact with an infected person.____6.Many pathogens are kept out of the body by thea.immune system.b.inflammation response.c.lymphatic system.d.skin. ____7.Your body's first line of defense against infectious disease includesa.skin, mucous membranes, saliva, and tears.b.phagocytes, lymphocytes, and pus.c.T cells, B cells, and antibodies.d.the lymphatic system, immune system, and inflammation response.____8.The body's second line of defense against pathogens isa.a vaccine.b.immunity.c.inflammation.d.the skin.____9.The body's third and most sophisticated line of defense against pathogens isa.a vaccination.b.inflammation.c.the immune system.d.the skin.____10.What produces active immunity
Answer:
Explanation:
6. Lyme disease, rabies, and malaria are mostly spread by bites from animals, such as dogs and mosquitoes.
7. Your body's first line of defense against infectious disease includes skin, mucous membranes, saliva, and tears.
8. The body's second line of defense against pathogens is Immunity.
9. .The body's third and most sophisticated line of defense against pathogens is a vaccination.
10.
Chromosomes contain all the genetic ________, all the instructions you need to make a person.
PLEASE HELP ITS BILL NYE VIDEO FILL IN THE BLNK
Answer:
Could the blank possibly be genetic code? Not really sure, but I think that it makes sense.
Organs whose activity is simulated by FSH are indicated by
Answer:
Gonads, thyroid gland, adrenal gland
For a biologist studying a small fish population in the lab, which Hardy—Weinberg condition is easiest to meet?
A) no selection
B) no genetic drift
C) no gene flow
D) no mutation
E) random mating
The Hardy-Weinberg condition that is easiest to meet for a biologist studying a small fish population in the lab is no gene flow, option C is correct.
No gene flow refers to the absence of migration or movement of genes between populations. In a lab setting, it is relatively easier to control and isolate fish populations, preventing the introduction or exchange of genes from external sources. This can be achieved by maintaining closed systems, where fish populations are kept separate from other populations, ensuring no genetic material is exchanged.
On the other hand, meeting the conditions of "no selection," "no genetic drift," "no mutation," or "random mating" may be more challenging to achieve in a controlled laboratory environment due to factors such as limited genetic diversity, genetic drift in small populations, mutation rates, and behavioral constraints on mating, option C is correct.
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what is photosynthesis
Answer:
Explanation:
photosynthesis is the process in which algae plants and bacteria use energy from the sun and turn it into food for themselves
Which of these types of muscles are striated? Check all of the boxes that apply.
1) skeletal muscles
2) cardiac muscles
3) smooth muscles
Answer:
Muscle Types: Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not. Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.
Answer: skeletal muscles & cardiac muscles
Explanation: Skeletal and cardiac muscles are striated. Smooth muscles are not.
Which statement would be most appropriate when thanking the Band Parents Group for a large college scholarship?
A. You guys are awesome!
B. I am totally psyched about this scholarship.
C. Your generosity shall not be unacknowledged.
D. Thank you very much for this honor,
Answer: Thank you very much for this honor,
Explanation: You should act formally when talking to people who are respected. This is the most obvious choice hence the situation.
Which of these proteins is responsible for preventing cell cycle progression if DNA damage is detected?
Rb
p53
ras
E7
The protein responsible for preventing cell cycle progression if DNA damage is detected is p53, option B is correct.
When DNA damage occurs, p53 is activated and plays a crucial role in maintaining genomic stability. It acts as a transcription factor, promoting the expression of genes involved in cell cycle arrest, DNA repair, and apoptosis. Upon detection of DNA damage, p53 activates the transcription of the CDK inhibitor p21, which inhibits the activity of cyclin-dependent kinases (CDKs), leading to cell cycle arrest at the G1 phase.
This pause allows time for DNA repair mechanisms to fix the damaged DNA before proceeding with cell division. If the damage is too severe to repair, p53 can also initiate programmed cell death or apoptosis to prevent the propagation of genetically compromised cells, option B is correct.
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The complete question is:
Which of these proteins is responsible for preventing cell cycle progression if DNA damage is detected?
A) Rb
B) p53
C) ras
D) E7
Meiosis and Mutations are both sources of/for:
O Genetic Drift
O Polyploidy
O Mutations
Genetic Diversity
Answer:
genetic drift
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Which best describes a recessive allele?
Answer:
B (imo)
Explanation:
Answer:
The answer for the question is D
Which of the following pollutants is used in agriculture and landscaping and might cause nerve damage, birth defects and cancer in humans?
A. particulate matter
B. lead
C. pesticides
D. bacteria
Other:
Answer: pesticides
Explanation:
Need help with the following !
How can fossils be used to determine the relative ages of rock layers?
Answer:
they use radiometric dating methods (find out what day it was formed)
Explanation:
based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
how it reacts to certain chemicals can determine how old it is
choose all that are effects of the sympathetic division on the circulatory system. multiple select question. increased heart rate vasoconstriction of blood vessels in the skin vasodilation of visceral blood vessels increased blood clotting decreased heart rate vasoconstriction of visceral blood vessels need help? review these concept resources.
The effects of the sympathetic division on the circulatory system are:
- Increased heart rate
- Vasoconstriction of blood vessels in the skin
- Vasodilation of visceral blood vessels
Explanation to the above given short answers are written below,
- Increased heart rate: The sympathetic division of the autonomic nervous system stimulates the release of norepinephrine, which binds to beta-adrenergic receptors in the heart, leading to an increased heart rate.
This response prepares the body for physical activity or stress by supplying more oxygen and nutrients to the muscles.
- Vasoconstriction of blood vessels in the skin: Sympathetic stimulation causes the constriction of blood vessels in the skin.
This response helps redirect blood flow to vital organs and muscles, which is important during fight-or-flight responses when increased blood supply to these areas is needed.
- Vasodilation of visceral blood vessels: The sympathetic division can also cause vasodilation in blood vessels supplying visceral organs, such as the liver and kidneys. This response allows for increased blood flow to these organs, supporting their metabolic functions.
The other options listed (increased blood clotting, decreased heart rate, vasoconstriction of visceral blood vessels) are not typically associated with the effects of the sympathetic division on the circulatory system.
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