Olivia wrote a few steps to describe how carbon circulates between the atmosphere and the land.
Step 1. Carbon is released into the atmosphere by the burning of fossil fuels.Step 2. Carbon is absorbed by plants in the process of photosynthesis.Step 3. Carbon is stored in plants and stored in the soil when they die.If step 2 is removed, then that statement best describes the effects of this missing step on the carbon cycle is that the amount of carbon dioxide in the atmosphere will gradually increase.
Plants use carbon dioxide present in the atmosphere to produce food through the process of photosynthesis by removing step 2, plants will not be able to take up carbon dioxide in the atmosphere, and due to this, the concentration of carbon dioxide in the atmosphere will increase.
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Which three of the following entities are acellular?.
a) prions archaea
b) viroids bacteria
c) viruses protists
d) fungi
Answer:
Prions archea, viroids bacteria, viruses protists are acellular while fungi is cellular.
While viruses have indeed been closely researched for more than a century for infections of people and animals, most viruses, particularly those that infect microorganisms, are still poorly understood.
Pathogenic RNA molecules are known as viroids. Contagious protein particles are identified as prions. Viruses are larger than that of viroids. Viroids are larger than prions in size.
Molds, wild yeasts, as well as mushrooms are examples of fungi. Numerous fungi are multicellular and also have nuclei in their cells. A protein-encased DNA or RNA core defines viruses being non - cellular organisms. Some scientists disagree with the notion that viruses are living things.
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What do gymnosperms and angiosperms have in common?
a. seeds
b. flowers
c. spores
d. none of the other answer options are correct
Peptic ulcer disease (pud) is most likely to affect which areas of the gastrointestinal (gi) lining?
Peptic ulcer disease (pud) is most likely to affect the mucosa lining of the stomach or duodenum.
Peptic ulcer disease refers to the occurrence of painful ulcers in the protective lining of the stomach of the duodenum. The stomach produces hydrochloric acid independently to digest the food. The mucosa is the protective lining of the stomach that protects it from the harm that may be caused by the HCl.
An excessive amount of HCl in the stomach or eating up of mucus lining by the bacteria can cause ulcers or sores in the stomach or duodenum. This is referred to as peptic ulcer disease. PUD can also be caused due to various other factors like genetic factors, consumption of alcohol, smoking, or excessive use of NSAIDs.
PUD primarily affects the mucosa lining of the stomach. Submucosa lining lies beneath the mucosa lining which can also get affected. Severe cases of PUD can also affect the Muscularis layer of the stomach.
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Which molecule can function as a recognition signal for interactions between animal cells?
Glycolipids molecule can function as a recognition signal for interactions between animal cells.
Describe glycolipids:Lipids having a carbohydrate connected by a glyosidic bond are known as glycolipids. Their job is to keep the cell membrane stable and make it easier for cells to recognize one another, which is essential for the immune response and for the connections that allow cells to join together to form tissues.
What use do glycolipids function?Glycolipids are crucial parts of biological membranes that serve a wide range of purposes. They might function as receptors, be necessary for cell aggregation and dissociation, be in charge of particular cellular interaction, and be involved in signal transduction. This protein does not transport phospholipids; instead, it largely transports various glycosphingolipids and glycerol glycolipids between internal membranes.
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Which herb should the nurse expect to be used by the patient who reports using herbs to obtain an erection?
Yohimbine (Pausinystalia yohimbe)
Yohimbine (Pausinystalia yohimbe) is the herb the nurse expects to be used by the patient who reports to obtain an erection.
The herb used to treat erectile dysfunction is called yohimbine (Pausinystalia yohimbe). The herb sage (Salvia officinalis) is used to control menstruation. The medication used to relieve menstrual cramps is chamomile (Matricaria recutita). Premenstrual syndrome and irregular menstruation are treated with black cohosh (Cimicifuga racemosa).What negative impacts can Yohimbe have?Yohimbine, a substance found in yohimbe, has been associated with serious adverse effects like irregular pulse, heart attack, and other things. When under the supervision of a healthcare professional, it can be used temporarily safely. However, it must not be used without a doctor's supervision.Is testosterone increased by yohimbe?The responders had greater free testosterone levels at baseline, but these levels did not significantly rise with the higher yohimbine dosages. Dehydroepiandrosterone sulfate levels in the responders were not noticeably greater at baseline, and they remained unchanged after receiving a larger dose of yohimbine.To learn more about erectile dysfunction visit:
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What part of the desmosome attaches cells to each other across intercellular spaces?
Tight junctions desmosome attaches cells to each other across intercellular spaces
Not all junctions between cells produce cytoplasmic connections. Instead, tight junctions create a watertight seal between two adjacent animal cells.
What is a Cell Junction ?A family of cellular structures known as cell junctions (or intercellular bridges) is made up of multiprotein complexes that allow contact or adhesion between adjacent cells or, in animals, between a cell and the extracellular matrix.
Cell junctions connect cells inside tissues and control tissue homeostasis in vital cell functions such as migration, proliferation, and function of the tissue barrier.Occludin, members of the claudin family, JAMs 1-3, cingulin, and linker proteins from the ZO family are all components of tight junctions and are responsible for binding the aforementioned proteins to one another or to the actin cytoskeleton. VASP has been identified as a component of the zonula occludens-1 (ZO-1) protein complex in both endothelial and epithelial cells.Learn more about Cell junction here:
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A prokaryotic cell may possess each of the following cellular components except? ribosomes. flagella. a nucleus. a cell wall. a cell membrane.
Answer:
A.
Explanation:
Prokaryotic cell is a primitive cell and has limited functions. Thus, nucleus is the correct answer.
What are prokaryotes?Prokaryotes are the oldest inhabitants on the earth. They are single cell structures.
Prokaryotic cells (karyon = nucleus) are not well equipped with the cellular structures. They lack nucleus and the nuclear membrane. The other membrane bound organelles are also absent in prokaryotes.
Prokaryotes contain cilia or flagella as locomotory organs. Cytoskeleton is absent in prokaryotes.
Prokaryotes can thrive in the extreme conditions. They can respire anaerobically or can even withstand high temperatures.
Bacteria are considered as prokaryotes. Bacteria dominate the earth and are of various types based on their shape, function etc.
The other examples of prokaryotes include blue-green algae and mycoplasma.
Prokaryotes reproduces without the fusion of gametes. It forms spores or employs other methods of somatic reproduction.
Therefore, prokaryotes, though being the oldest are important for the ecosystem.
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Evolution of shorter legs in anole lizards placed on small, hurricane-scrubbed islands is an example of which type of evolution?.
This type of evolution is known as Microevolution.
What is the meaning of evolution?Evolution is the descent modification of preexisting species. It is a process species adapt over time. There are two types of evolution: Microevolution and macroevolution.
Microevolution is defined as the changes in the frequency of the gene in the population. Several factors affect evolution geneflow, including natural selection, mutation, and genetic drift.
Pesticide resistance is one example of macroevolution. Microevolution is frequently seen in visible forms of evolution, such as antibiotic-resistant variable strains. Microevolution is the change in gene frequency that occur over time. Alleles are different forms of a gene. Allele frequencies are usually represented as a percentage.
This type of evolution is known as Microevolution.
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ASAP PLEASE HELP ASAP
1.Alex poured some pond water into three beakers. She then put waterweed into each
beaker. She put the beakers in different places.
i) In which beaker did the waterweed grow best? Give the correct letter.
________
ii) The waterweed in the box changed from dark green to pale yellow. Why did this happen?
2.In the school pond there were lots of water lilies with large leaves covering the surface. There were not many plants growing below the surface. Suggest a reason
for this.
3.In another experiment, Alex put similar pieces of waterweed into two more beakers of pond water. She added fertiliser to one of them. She kept them both by a window.
i) Alex added fertiliser to beaker E. Suggest the results of this experiment.
ii) What do fertilisers contain to help plants grow? Tick the correct box.
1. (i) The waterweed will grow best in beaker A (in normal daylight).
(ii) The waterweed in the box changed from dark green to pale yellow. This happened because the black box blocked the light due to which the waterweed was not able to carry out the process photosynthesis.
2. There were not much plants growing below the surface in the school pond with lots of water lilies in it as the excessive growth of water lilies inhibited the penetration of light in the pond.
3. (i) The waterweed will grow better in beaker E containing pond water and fertilizer.
(ii) Fertilizers contain minerals which help the plants to grow.
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When organisms leave the group they were born into and join another group, this can alter allele frequencies in the new group. What mechanism is this?.
The answer to the question is gene flow.
What is gene flow?Gene flow, sometimes referred to as gene migration, geneflow, and allele flow in population genetics, is the exchange of genetic material between populations. A population can be deemed to be a single effective population if two populations have equal allele frequencies and the rate of gene flow is high enough. It has been demonstrated that all it takes is "one migrant each generation" to stop populations from drifting apart. Depending on how severe the selection pressure is, populations can diverge even when they are exchanging alleles. The exchange of genetic variety between populations is facilitated through gene flow. By altering allele frequencies, migrants affect how genetic variation is distributed among populations.
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In pea plants, green color (G) is dominant to albino (g). If we cross two pea plants that are heterozygous for color, what would be the expected phenotype ratio of the offspring? Do the Punnett square and write the phenotypic ratio in the space below:
Explanation:
risky behavior and abuse
When two heterozygous plants are crossed, then the offspring will be of two different phenotypes, such as green and albino. Out of the four individuals, three will be green and one will be albino. The phenotypic ratio is 3:1.
What is a monohybrid cross?A monohybrid cross involves a single character or trait. Example: the colour of a pea plant. In the pea plant, green is dominant over albino. Green colour is represented by G. Albino colour is represented by g.
The homozygous green plant is represented by GG. The heterozygous green plant is represented by Gg . The homozygous albino plant is represented by gg .
When two heterozygous plants (Gg) are crossed, each parent will produce two types of gametes, such as G and g. There will be offspring of the GG, Gg and gg type. Both homozygous (GG) and heterozygous (Gg) plants will be green. The punnett square is explained below
Hence, there will be two different phenotypes, such as green and albino, from the cross of two heterozygous individuals. The phenotypic ratio is 3:1.
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The scientific definition of ______ refers to changes in a species or population over time. systematics genetics evolution biology
The scientific definition of evolution refers to changes in a species or population over time.
Evolution is a long-term process. It may take millions of years and several generation for an evolution to occur. The cause of evolution can be genetic as well as environmental. The evolution is a result of mutation. Evolution generally gives rise to new species, that is different from its ancestral population.
Population is a group of similar type of organisms. These organisms live in the same habitat, require same resources and have same kind of habits. The most essential criteria that defines a population is that the organisms of a population can mate with each other and produce offspring.
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Biologists identify and characterize climate in an area primarily by analyzing __________.
The average annual temperature, precipitation, and yearly variation in temperature and precipitation are the primary metrics used by biologists to identify and characterize climate in a region.
What is the precipitation process?Only when these will merge into larger drops through turbulence, in which water droplets clash and produce even larger droplets, is precipitation feasible. The droplets eventually descend, agglomerate, and grow heavy from resistance, and they finally fall as rain.
What causes precipitation?When cloud droplets or ice particles in the clouds develop and merge, they can no longer be supported by the updrafts (such as upward moving air) in the clouds and fall to the ground, forming precipitation.
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All living things require an outside source of materials and energy. the sum total of all chemical reactions that occur within a cell to provide these materials and energy is called?
All living things require an outside source of materials and energy. The sum total of all chemical reactions that occur within a cell to provide these materials and energy is called metabolism.
Energy is the ability to perform work. In an organism's body energy is required to perform each and every processes inside the body. In eukaryotic organisms this energy is derived by the mitochondria. In humans and various other species, the major source of energy is ATP.
Metabolism is the sum total of all the reactions taking place inside the body. These reactions can be anabolic or catabolic. The anabolic reaction involve the formation of larger molecules from the smaller ones. The catabolic reactions involve the breakdown of larger molecules into smaller ones.
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The two most commonly used antibiotics for therapy against uncomplicated tuberculosis are?
The two most commonly used antibiotics for therapy against uncomplicated tuberculosis are isoniazid , ethambutol, and pyrazinamide. Mycobacterium tuberculosis is the bacteria that causes tuberculosis (TB). Although the TB germs typically assault the lungs, they can also affect the kidney, spine, and brain.
Not every person who contracts the TB germs gets ill. Mycobacterium tuberculosis is a type of bacteria that causes tuberculosis (TB). When a person with active TB disease in their lungs coughs or sneezes, TB bacteria-containing droplets that are ejected are inhaled by the other person. Although TB has the potential to be a serious infection, the correct drugs can cure it.
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In terms of fatalities, the most dangerous natural disasters are caused by ____.
In terms of fatalities, the most dangerous natural disasters are caused by long term weather patterns that causes droughts.
A drought is a prolonged period of unusually dry weather caused by a lack of rain. A lack of precipitation can cause a number of issues for local communities, such as crop damage and a lack of drinking water.
Drought and certain weather patterns have been linked by geologists. A weather pattern reveals where the temperature of the surface water in the Pacific Ocean rises along the central South American coast. Warmer waters influence storm patterns and are linked to droughts.
When the temperature of the Pacific Ocean's surface water along South America's coast falls. The cooler waters influence storm patterns by causing drier-than-normal conditions. As a result, climate/weather change increases the chances of drought worsening in many parts of the world.
How drought is impacted by climate change?
Warmer temperatures accelerate evaporation, which decreases surface water and dries out the soil and vegetation. Low precipitation periods become drier as a result, as opposed to when it is cooler. Affected areas are becoming drier as a result of climate change's timing changes for water availability.
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A client is scheduled for elective cardioversion to treat chronic high-rate atrial fibrillation. which finding indicates that further preparation is needed for the procedure?
The finding that the client is wearing a nasal cannula delivering oxygen at 2 L per min needs further preparation for the procedure of electrical cardioversion.
Electrical cardioversion is used to treat various abnormal heart rhythms. Irregular heart rhythms can cause problems like apoplexy, stroke, or even sudden cardiac death. Artrial fibrillation (A-F) is ususally treated with this technique. A-F is a condition in which the atria of the heart shiver instead of producing a rhythm. It thus produces a rapid heartbeat and can cause a risk for apoplexy.
To start with the procedure, electrodes are stuck to the body. Electrical signals are then sent to your heart through these electrodes. Any oxygen from your body is removed before initiating the procedure because oxygen aids combustion and can result in electrical sparks inside the body and can cause flickers.
Patients are usually put on oxygen before the procedure to provide them sufficient amount of oxygen and make them stable for the procedure. Intentionally, Digoxin is kept withheld for 48 hours and food and fluids for 12 hours before the procedure.
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in biology Validity refers to what
in biology validity refers to a test measures what it purports to measure.
First, we have to establish the validity of a test score when used for a particular purpose, so that a score may be improperly used for one purpose, but not for anotherSecond, validity is a matter of degree so that we know if validity is sufficient to make use of the test worthwhileThird, we must distinguish between validity n accuracy of norms of a test so that we know if It's possible for a test to have a good validity but have norms that is off the mark. The converse may be also true.Validity is the main extent to which a concept, conclusion or measurement is well-founded and likely corresponds accurately to the real world. The word "legitimate" is derived from the Latin validus, meaning robust. The validity of a size device is the diploma to which the tool measures what it claims to measure.To know more about validity visit :
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Match each word to It's correct meaning.
1. carbon dioxide
2. respiration
3. saprophyte
chemical process of cells doing
work; breathing
organism that gets its food from
decaying plants or animals
gas given off in animal respiration
that is absorbed from the air by plants in
photosynthesis
Answer:
and
Explanation:
Carbon doioxide-gas given off in animal respiration
that is absorbed from the air by plants in
photosynthesis.
Respiration - chemical process of cells doing
work; breathing.
Saprophyte-organism that gets its food from
decaying plants or animals
Note that common tasks are listed toward the top, and less common tasks are listed toward the bottom. according to o*net, what are common tasks performed by veterinarians? check all that apply. advising animal owners operating equipment treating sick or injured animals feeding and watering farm animals examining animals training animals
Common task such as examine animals to assess their health and diagnose problems,Treat and dress wounds,Perform surgery on animals,Test for and vaccinate against diseases,Operate medical equipment, such as x-ray machines,Advise animal owners about general care, medical conditions, and treatments,Prescribe medication.
Treat unwell or injured animals through prescribing medication, placing bones, dressing wounds, or acting surgery. Inoculate animals towards numerous sicknesses, inclusive of rabies or distemper. Examine animals to come across and decide the character of sicknesses or injuries.
Medical specialists regularly speak approximately the “Standard of Care,” a hard and fast of recommendations that outline the suitable remedy for a selected fitness problem. The fashionable of care is what facilitates make certain that sufferers obtain a comparable primary stage of care regardless of wherein they are treated
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Answer:A,B,C,E
Explanation:Just did It.
What kind of chemical does saccharomyces cerevisiae ferment to produce alcohol? mcb 100
Saccharomyces cerevisiae ferments carbohydrates to produce alcohol and carbon dioxide.
Saccharomyces cerevisiae, also known as baker's yeast, is a unicellular fungus under the Phylum Saccharomyces under the Kingdom Fungi. It is used in bread and alcohol production. It is commonly known as yeast. S. cerevisiae produce alcohol and carbon dioxide from carbohydrates through a biochemical process called fermentation.
Fermentation is the process whereby glucose is broken down in an oxygen lacking environment. There are two types of fermentation - alcohol fermentation and lactic acid fermentation. Yeasts like S. cerevisiae make use of alcohol fermentation. The alcohol produced as a result is used in production of alcoholic beverages and the carbon dioxide is used in bread production to proof dough.
Muscle cells can make use of lactic acid fermentation to produce energy in an oxygen lacking environment.
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1.1.4 Quiz: The Scientific Process
Question 3 of 10
What is the next step in the scientific method, following data collection?
O A. Forming a hypothesis
OB. Stating the question
OC. Analyzing the data
SUBMIT
The next step is analyzing the data.
Scientists employ the scientific method to study the world in which they live. It may also be used to determine the veracity of any assertion.The first step in the scientific process is to define the issue and formulate a testable hypothesis. Making observations using your five senses and accumulating data can help you find the solution to a scientific inquiry.Making a hypothesis is the second step in the scientific process. An explanation for a group of observations or a response to a scientific enquiry is referred to as a hypothesis.The next step in the scientific process is to create an experiment to test the hypothesis. This entails putting together a materials list and a method, which is a detailed description of how to carry out the experiment.Therefore, option C. is correct.
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11. Molecules that contain coded information and
directions for activities in a cell belong to this
group.
a.
b. lipid
carbohydrate
C.
protein
d. nucleic acid
Answer:
D.nucleic acid is the ans
Explanation:
[^_^]
which of the following is NOT a characteristic that a living thing must follow
-A. Order
-B. Reproduction
-C. Growth & Development
-D. Energy processing
-E. Be related to at least 2 other species
-F. Responds to the environment
-G. Regulation
-H. Evolutionary adaptation
Growth & Development is the not a characteristic that a living thing must follow
Different characteristics of growth and development like intelligence, aptitudes, the body structure, the height, weight, color of the hair and eyes are highly influenced by the heredity. Sex: Sex is a very important factor which actually influences the human growth and the development It can help them learn new skills, to grow their career, and to improve their mental health. Human growth and the development are the important because it also helps them to learn new skills, improve their quality of life, and also improve their mental health. Human growth and the development are important in the continuity of the species.
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Operant conditioning which encompasses blank and blank refers to the process and selectively effects of?
Operant conditioning which encompasses reinforcement and punishment refers to the process and selective effects of consequence on behavior.
Operant conditioning is the process of learning to behave in a way so that rewards can be obtained and at the same time punishments can be avoided. It is used by humans as well as animals.
The main purpose of operant conditioning is to reinforce required behavior by providing a system of reward and removing undesirable behavior by giving punishments.
It can be divided into positive reinforcement, negative reinforcement, positive punishment & negative punishment.
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Imagine that, of three species, it is known that species 1 and 3 were separated 10 million years ago, based on geologic measurements. Genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. If there are 10 substitutions separating species 1 and 2, approximately how long ago did these species diverge?.
(C) 1 million years ago is the approximate time that the species diverge. This is because Genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. If there are 10 substitutions separating species 1 and 2.
Divergence in evolutionary biology refers to an evolutionary process in which a population of an inbreeding species splits into two or more descendant species that have progressively diverged in their morphologies and structural characteristics.
The difference between species 1 and 3 is 100 substitutions, and humans split off 10 million years ago. As a result, there will be 10 substitutions in a million years. As a result, 1 million years ago, species 1 and 2, which are divided by 10 substitution, diverged.
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Question correction:
Imagine that, of three species, it is known that species 1 and 3 were separated 10 million years ago, based on geologic measurements. Genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. If there are 10 substitutions separating species 1 and 2, approximately how long ago did these species diverge?
A. 0.1 million years ago
B. 10 million years ago
C. 1 million years ago
D. 100 million years ago
The heart has four chambers, but one of them is notably thicker and comprised of the most muscle tissue. which chamber of the human heart is the most muscular and therefore the strongest?
Out of the four chambers, the left ventricle of the human heart is the most muscular and therefore the strongest.
Heart is the organ that circulates blood to the entire body. It is made up of cardiac muscles that regulate its pumping all the time. These are involuntary muscles. The heart has 4 chambers: 2 atriums and 2 ventricles. One side of the heart is involved in the regulation of oxygenated blood while to other side regulates the deoxygenated blood.
The left ventricle of the heart is the major blood pumping chamber. It pumps the oxygenated blood to the complete body. Thus requires very much force and hence this is why it is the most muscular and strongest chamber of the heart.
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A promoter that affects only genes that are on the same piece of dna is referred to as a(n) _____-acting promoter.
A promoter that affects only genes that are on the same piece of DNA is referred to as a cis acting promoter.
What is DNA?Deoxyribonucleic acid, a polymer made of two polynucleotide chains that coil around one another to form a double helix, contains the genetic material required for the growth, development, and reproduction of all recognized organisms as well as a number of viruses. Ribonucleic acid (RNA) and DNA are examples of nucleic acids. Along with proteins, lipids, and complex carbohydrates (polysaccharides), nucleic acids are one of the four main categories of macromolecules required for all known forms of life.
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Will the velocity of the book change as it moves across the surface WITH friction? Explain your answer.
Answer:
yes
Explanation:
Friction slows things down. It causes a opposite force on the book causing the speed to slow and come to a stop.
The _____ is a type of regulator protein that binds to a region of dna in the promoter of a gene called the operator and prevents transcription from taking place.
The repressor is a type of regulator protein that binds to a region of DNA in the promoter of a gene called the operator and prevents transcription from taking place.
In the field of science, a regulator protein can be described as a kind of protein that affects the transcription of a gene by having an influence on particular DNA sites. The rate of synthesis of various proteins is controlled by the regulator proteins.
A repressor is a kind of regulator protein that prevents the transcription of a particular gene. When the rate of a protein in the body has reached normal, the transcription of the protein needs to be stopped in order for more protein of that kind to be formed. The repressor binds itself to the operator region for the gene, hence stopping the transcription process until the protein is required again.
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