Answer: Fossils can tell scientists about the past by showing how the skeleton is structured so they can get an idea about what they ate, their limitations, and sometimes even how they acted or mated.
Explanation:
an uncorrected mismatch error during human dna replication can result in choose one: a. an extra chromosome. b. the combination of two or more alleles. c. a disruption in the double-helix structure of the dna molecule. d. the potential for a disease or genetic disorder.
The potential for a disease or genetic disorder.
DNA replication is the process by means of which the genome's DNA is copied in cells. Earlier than a cellular divides, it must first replica (or reflect) its whole genome so that every ensuing daughter cell ends up with its personal complete genome.
Replication is an important process because, each time a mobile divides, the 2 new daughter cells have to include the equal genetic records, or DNA, as the discern cell. duplication.
The end result of DNA replication is two DNA molecules consisting of 1 new and one vintage chain of nucleotides. That is why DNA replication is described as semi-conservative, half of of the chain is part of the unique DNA molecule, half of is modern-day.
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concentration gradient
Answer:
Is the difference between the concentration of the molecules between the region of the high concentrations and that of the lower concentration
Which hormone may be low in exercising women due to low energy intake, which can result in decreased bone formation?.
Estrogen hormone may be low in exercising women due to low energy intake, which can result in decreased bone formation.
For women, the hormone estrogen is very important and has a vital role. This one hormone is always present at every level of a woman's life, from menstruation and puberty, pregnancy, to menopause.
What is the Estrogen Hormone
Before understanding what estrogen is, you first need to know about the hormone itself. In this case, the hormone is actually a chemical substance produced by the body. The role of hormones in this case is to control and also regulate the activity of certain cells and organs. In addition, hormones also have important functions in relation to the body's metabolism, body development, reproductive system, to mood.
As for estrogen itself, basically refers to a group of hormones that play an important role in the growth and development of female sexual characteristics as well as in the reproductive process. Even so, please note that the hormone estrogen can also be found in the male body, but in very small levels.
If the male hormone estrogen is produced by the testes, in women this hormone is produced by the ovaries. During pregnancy, women can get this hormone from the placenta. The amount produced is not always the same, sometimes it increases, but it can also decrease. This adjusts to the function of the hormone itself which plays an important role in the female reproductive system.
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A bacterial cell makes binary fission many times and 16 calls are produced during two hours.What is the time taken by one binary fission? a)30 minutes
b)60 minutes
c)45 minutes
d)20 minutes
Answer:
A) 30 minutes
Explanation:
First we will calculate number of division times it will be 16 log/2log =4
then we will divide total time by number of division 120÷4=30
before endosymbiosis could occur, what must have been present? a. an atmosphere with high levels of oxygen b. aggregated continental crust via plate tectonics c. oceans with salinities close to the modern level d. multiple species of prokaryotic organisms e. an ozone layer, to protect genetic material from the effects of ultraviolet radiation
Answer:
D. Multiple species of prokaryotic organisms.
Explanation:
Hope this helps!!!
which pair is mismatched? a.opsonization: can involve the adaptive immune system b.interferon type 1: can make a cell resistant to viral infection c.macrophage: immune system cells that carry out phagocytosis d.fever: induced by the presence of pyrogens e.alternative complement pathway: complement activated by antibodies
The adaptive immune system may be involved in osonization.
Option A is accurate.
What are the adaptive immune response's four defining traits?Antigenic specificity, variety, immunologic memory, and the capacity to distinguish between the self and the non-self are the four features of adaptive immunity. Lymphocytes (B-cells and T-cells) and antigen-presenting cells participate in an immune response (macrophages, B-cells, and dendritic cells).
Interferons play a role in the adaptive system, right?IFNs are a class of pleiotropic cytokines that were first identified for their capacity to prevent virus replication. But it is now known that these cytokines are crucial in controlling both innate and adaptive immunity.
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NEED ANSWER PLS DUE SOON
Red blood cells in seawater would shrivel up because there is more salt concentration than human blood cells can handle.
Sorry I can't answer for 3 but the thyroid gland is the main organ for hormones so it definitely has something to do with that
suppose that in one cell in your skin, chromosome 14 and chromosome 18 exchange genetic materials. this change is inherited by subsequent cells. this is an example of a mutation that is also a(n)
This is an example of a somatic mutation that is also translocation.
A DNA change that happens after fertilization. Somatic mutations can develop in every cell of the body except reproductive cells (sperm and egg) and are thus not passed on to children. Somatic mutation, a genetic change established by a cells that can also be passed on to the mutant cell's descendants during cell division.
Environmental variables, like as exposure to UV light or certain chemicals, are commonly responsible for somatic mutations. Somatic mutations can occur in whatsoever cell division, from the initial cleavage of a fertilized egg through cell divisions which replace cells in an elderly person.
All cells generated from the mutant cell are affected by the mutation. A substantial component of a creature, such as a tree branch or an animal's whole tissue layer, may possess the mutation; it could or could not be visible. Somatic mutations can cause a variety of disorders, including cancer.
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newly formed polypeptides are released and the ribosomal subunits break apart as a result of sequences in mrna called
Newly shaped polypeptides are released and the ribosomal subunits break apart as a result of sequences in mRNA called Translation.
The translation is the technique that takes the facts handed from DNA as messenger RNA and turns it into a series of amino acids sure collectively with peptide bonds.
Within the course of translation, ribosomal subunits acquire collectively like a sandwich on the strand of mRNA, in which they proceed to attract tRNA molecules tethered to amino acids (circles). an extended chain of amino acids emerges as the ribosome decodes the mRNA series proper into a polypeptide, or a logo-new protein.
The release elements bind to a termination codon on the area and stimulate hydrolysis of the bond between the tRNA and the polypeptide chain at the P internet site online, resulting within the release of the completed polypeptide from the ribosome. The tRNA is then released, and the ribosomal subunits and the mRNA template dissociate.
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two pure breeding lines of pea, one tall and hairy, the other short and smooth, are crossed. the f1 hybrid is tall and hairy. the f2s assort in four phenotypic classes in a 9:3:3:1 ratio. crossing a tall, smooth f2 plant to a short, smooth f2 plant will produce how many phenotypic classes?
The genotypes A B_, A bb, aaB_, and aabb are matched to the four phenotypic groups.
How do phenotypic classifications work?The genotypes A B_, A bb, aaB_, and aabb are matched to the four phenotypic groups. If any of the single homozygous recessive genotypes (i.e., A bb or aaB_) exhibits the same phenotype as the double homozygous recessive (aabb), then a 9:3:4 phenotypic ratio will result.
What does phenotypic classification entail?phenotype, all of an organism's observable traits that emerge from the interaction of its genotype (total genetic inheritance) and environment. Observable features include things like behavior, biological characteristics, colour, shape, and size.
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which of the following statements about the monomers and polymers found in living organisms is false? question 6 options: the monomers used to make polymers are essentially universal. monomers serve as building blocks for polymers. monomers are joined together by the process of dehydration / condensation. monomers are joined together by the process of hydrolysis
False statement is option D: monomers are joined together by the process of hydrolysis.
The majority of macromolecules are constructed from single monomers, often known as building blocks. Covalent bonds allow the monomers to join to create polymers, which are bigger molecules. Consequently, monomers produce water molecules. Dehydration synthesis, which literally translates as "to bring together while losing water," is the name for this kind of reaction. Hydrolysis on the contrary means to break down polymers into monomers by putting up water.
Monomers are thus building blocked of polymers joined together by covalent bonds. While hydrolysis reactions typically release energy by breaking bonds, dehydration reactions typically require an energy investment for the formation of new bonds.
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the mutation that causes cystic fibrosis affects several traits and is, therefore, an example of a(n)
Cystic fibrosis affects several traits, therefore, it is an example of a pleiotropy .
Pleiotropy occurs when a gene mutation affects numerous traits, or when it results in many mutant phenotypes, affecting more than one attribute.
Pleiotropic genes are those that show multiple phenotypic expression. Due to the gene's product being employed by several cells or diverse targets with the same signaling function, a pleiotropic gene mutation may affect multiple features at once.
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If a human cell has more or less than the correct number of chromosomes, what is a likely result? Select all that apply.
a
It can cause mutations in the DNA of the human.
b
It can result in lower human diversity.
c
It can cause the human's DNA to replicate.
d
It can cause cell cloning in humans.
e
It can result in humans not being able to reproduce
If a human cell has more or less than the correct number of chromosomes then it will lead to mutations. Option a is correct.
What is the number of chromosomes ?The human genome is made up to use 23 pairs of chromosomes that is 46 chromosomes in all. Out of these 22 are autosomes and 1 pair is sex chromosomes.
DNA is required to function properly at the pair of 23 chromosomes only. Various mutations leading to diseases takes place if abnormality occurs.
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imagine you're an astrobiologist trying to crack the genetic code of a microbe in another galaxy. you isolate a mutant with a one base-pair insertion in gene x which causes the gene to be frameshifted and therefore nonfunctional. you then isolate a second mutation, a base-pair deletion in gene x a few nucleotides downstream of the first mutation. when combined, these two mutations result in a functional version of gene x. what have you discovered about the genetic code of this microbe?
James Watson and Francis Crick's 1953 discovery of DNA's double helical structure marked a significant turning point in the biological sciences.
What does bacteria's genetic code look like?The DNA code utilised by bacteria, archaeal, prokaryotic viruses, and chloroplast proteins is known as the bacterial, archaeal, and plant plastid code. Although there are minor differences in the alternate start codons, it is essentially the same as the conventional code.
Why is the genetic code significant? What is it?Important evidence supporting the shared origin of life on Earth comes from the genetic code shared by a variety of creatures. That is to say, it is likely that the many species found on Earth today developed from an ancient organism that already possessed the genetic code.
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which arteries connect the basilar artery and the internal carotid artery forming the posterior aspect of the cerebral arterial circle?
A posterior communicating artery connects the ipsilateral internal carotid artery to the two posterior cerebral arteries, which were created by dividing the basilar artery.
A member of the cerebral vascular circle of Willis is the posterior communicating artery (PComm), a branch of the internal carotid artery. The internal carotid and the posterior cerebral arteries are linked by the posterior communicating artery, uniting the anterior and posterior cerebral circulations.
At the back of your brain lies a blood vessel called the basilar artery. It nourishes your brain and central nervous system with oxygen-rich blood. The primary artery that supplies blood to the back of your brain is called the basilar.
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A sample of liquid water is boiling. As more heat is added, the temperature of the liquid water will
Answer:
increase
Explanation:
Answer: It will increase
Explain: When the water tempter gets higher the water starts to increase due to the heat.
I hope this help! have a nice day!
What is a temperature inversion in the atmosphere?
Which layers of the atmosphere do the major temperature inversions occur?
What causes the major temperature inversions in the atmosphere?
The answers include the following:
Temperature inversion is referred to as a layer in the atmosphere in which air temperature increases with height. The stratosphere is the layers of the atmosphere in which the major temperature inversions occur.The major cause of temperature inversions in the atmosphere is when air associated with the shallow air mass is colder than the air aloft which creates an inversion.What is Atmosphere?This is referred to as an envelope of gases which surrounds the planet and examples of such gases include oxygen, carbon dioxide etc.
Temperature inversion occurs in the part of the atmosphere known as the stratosphere and it is caused when the air associated with the shallow air mass is colder than the air aloft which creates an inversion.
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the desire to eat is stimulated by: a. cocaine- and amphetamine-regulated transcript (cart). b. alpha-melanocyte-stimulating hormone (a-msh). c. peptide yy (pyy). d. agouti-related protein (agrp).
The desire to eat is increased by agouti-related protein (agrp). Protein makes up the majority of the body's organs, tissues, and body parts, including muscle, bone, skin, and hair.
Which benefits of eating protein stand out the most?Protein is used to build your muscles. Therefore, eating enough protein while strength training helps you maintain and build new muscle. Numerous studies have shown that eating more protein leads to gains in strength and muscle mass.
When your body doesn't have enough protein, what happens?A severe protein deficiency can lead to edema, fatty liver, aging skin, deterioration of diseases, and stunted growth in children. In wealthy countries, true insufficiency is rare, although inadequate intake can cause muscle atrophy and an increased risk of fractures.
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where do somatic motor commands to skeletal muscles of the upper and lower appendages exit from the spinal cord?
The somatic motor commands to skeletal muscles of the upper and lower appendages exit from the spinal cord from ventral roots.
The motor root of a spinal nerve, which emerges from the anterior side of the cord and transmits motor information from the spinal cord to the rest of the body. The efferent motor root of a spinal nerve is known in anatomy and neurology as the ventral root of the spinal nerve, anterior root, or motor root. The ventral root and dorsal root combine at the spinal nerve's distal end to generate a mixed spinal nerve.
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At the end of DNA replication, there should be a total of....
A. 8 SINGLE strands of DNA
B. 2 DOUBLE stranded DNA helixes
C. 10 SINGLE strands of DNA
D. 5 DOUBLE stranded DNA helixes
Answer:
my guess if I remember correctly I think the answer is b
At the end of DNA replication, there should be a total of B. 2 DOUBLE stranded DNA helices. During DNA replication, the DNA double helix unwinds, and each strand acts as a template for the synthesis of a new complementary strand.
DNA replication is a fundamental process in which a cell produces two identical copies of its DNA molecule. It occurs during the cell cycle's synthesis (S) phase, ensuring that each daughter cell receives a complete set of genetic information. The replication process begins with the unwinding of the DNA double helix. An enzyme called helicase unwinds and separates the two strands of the DNA molecule by breaking the hydrogen bonds between the base pairs.
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Flow of filtrate through the tubules is elevated. Complete the following statements to indicate the effectS Of IS T re than once, or not at all. G and drop the terms on the left to complete the sentences on the right. Words may be used once, more than once, or not at all. Decreases Filtrate flow through the renal tubule increases when glomerular filtration rate
releasing When filtrate flow through the renal tubule increases, reabsorption of sodium chloride by the tubule
vasoconstricting When filtrate flow through the renal tubule increases, the concentration of sodium chloride remaining in the filtrate
not releasing When filtrate flow through the renal tubule increases, the macula densa responds by vasoconstrictors
increases When filtrate flow through the renal tubule increases, the afferent arteriole responds by
vasodilating
Decreases Filtrate flow through the renal tubule increases when glomerular filtration rate releasing When filtrate flow through the renal tubule increases, reabsorption of sodium chloride by the tubule.
The nephron, a functional unit of the kidney, is made up of structures called renal tubules. Nephron functions include controlling the balance of water and body electrolytes, reabsorption of glomerular filtrate, and secretion of waste products. The majority of reabsorption takes place in the proximal contoured tubule of the renal tubules. Electrolyte equilibrium is affected by Henle's handling. Distal contoured tubule in charge of secreting chemicals for elimination.99% of the glomerular filtrate can be reabsorbed by the renal tubules. Since the tube flow is dependent on the rate of glomerular filtrate, which is roughly 120 millilitres per minute, an increase in glomerular filtrate will result in an increase in both the amount of filtered fluid flowing and the amount that flows.
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malignant tumor of lymph nodes: a.sarcoidosis b.lymphedema c.hodgkin disease d.lymphocytopenia e.hypersplenism
Hodgkin's lymphoma is a type of cancer that affects the lymphatic system and causes malignant tumors of lymph nodes (lymphoma).
What is Hodgkin's lymphoma?
It is a localized or disseminated malignant proliferation of cells of the lymphoreticular system, primarily involving lymph node tissue, spleen, liver, and bone marrow. In this disease white blood cells called lymphocytes grow out of control, causing swollen lymph nodes and growths throughout the body.
Hodgkin lymphoma most commonly affects lymph nodes in the neck or in the area between the lungs and behind the breastbone.
Let us discuss other options:
Sarcoidosis is characterized by the growth of tiny collections of inflammatory cells in any part of the body most commonly in the lungs and lymph nodes.Lymphedema is the swelling of the lymph nodes due to blockage in the lymphatic system.Lymphocytopenia is the increase in the count of white blood cells that occurs when the lymphocyte count is lower than usual.Hypersplenism is an overreactive spleen that removes the blood cells too early and too quickly.Hence Hodgkin's disease causes the malignant tumor of lymph nodes.
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an enzymatic weight-gain supplement claims to help users digest all carbohydrates in fruits and vegetables. what key enzyme would you hope to see on the label?
An enzymatic weight-gain supplement claims to help users digest all carbohydrates in fruits and vegetables. Cellulase enzyme is present.
What is cellulase ?Cellulase (systematic name 4—D-glucan 4-glucanohydrolase) is any of a number of enzymes that catalyse cellulolysis, the breakdown of cellulose and some related polysaccharides, and is primarily produced by fungi, bacteria, and protozoans.
Endohydrolysis of (14)-D-glucosidic linkages in lichenin, cereal -D-glucan, and cellulose
The term is also applied to any naturally occurring combination or complex of numerous such enzymes that break down cellulosic material sequentially or cooperatively.
Cellulases convert the cellulose molecule into shorter polysaccharides and oligosaccharides, as well as monosaccharides (or "simple sugars") like -glucose. Because it makes a key plant component usable for food and use in chemical reactions, cellulose breakdown has significant economic significance. The 1,4-D-glycosidic bonds in cellulose, hemicellulose, lichenin, and cereal -D-glucans are hydrolyzed in this particular process. Compared to the breakdown of other polysaccharides like starch, the breakdown of cellulose is particularly challenging because the molecules of cellulose bind tightly to one another.
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the small fish known as the cleaner wrasse is found in a mutualistic relationship with larger fish species. what benefit does the cleaner wrasse obtain from the relationship?
The benefit of reliable food sources is the cleaner wrasse obtained from the relationship.
In this relationship, the cleaner wrasses establish "cleaning stations" where they consume parasites and dead skin cells from obedient reef fish. By getting rid of those parasites, the reef fish benefit, and the wrasses get a new source of food. A reciprocal relationship exists between cleaner fish and larger fish. The reason for this is that the cleaner fish feeds on the large fish's dangerous parasites and other small sources of food.
The larger fish benefit because they no longer have these parasites on them, and the cleaner fish get a meal as a result. More often than not, larger fish wait in "cleaning stations" for cleaner fish to come and remove these things from them. Even cleaners can be found among some small shrimp.
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This is the last question for this assignment, please help.
Answer: Nitrogen fixation is on the left going into the ground and denitrification is the release on the right side.
Explanation:
what was a crucial advantage of the daguerreotype method? group of answer choices no darkroom required shorter exposure times it allowed multiple copies to be made from a single negative it resulted in sharper images than the competition
Crucial advantage of the daguerreotype method is that it resulted in sharper images than the competition.
Daguerreotypes was an early photographs method on a light-sensitive metal plate coated in crystals. A daguerreotype just needed just twenty minutes exposure. Daguerreotype, produced an opaque original positive that could be duplicated only by copying it with a camera.
There are advantages of the daguerreotype they produce crystal clear images , It was the first commercially successful photography method in photography history . other disadvantage includes it has a long exposure time, it is expensive, and the cameras are very large.
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what are the different types of information? group of answer choices levels, forms, granularities levels, forms, data levels, formats, granularities data, formats, granularities
The different type of information are Levels, formats , granularities.
The levels app assigns a metabolic rating to each meals to can help you realize the way it affects your blood sugar. The app will even assign a rating for every day which helps you to appearance returned to see trends. You could see that I generally tend to eat worse starting Friday thru Sundays.
When you first sign up for degrees, the full value might be $398 USD.
There are numerous varieties of degrees inclusive of dumpy degree, Y degree, cushing's degree, tilting level, cooke's reversible degree and automated degree gadgets for leveling in surveying. The technique of measuring vertical distances in surveying is known as leveling.
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dcpip (2,6-dichlorophenol-indophenol), a blue dye, can act as an electron acceptor and becomes colorless when reduced. a suspension of chloroplasts is prepared, and dcpip is added to the suspension. the sample is split into two test tubes. one test tube is exposed to light and the other is wrapped in foil (dark control). what would you observe over time comparing the light exposed and the dark control test tubes?
The light exposed test tubes will become colorless while dark test tubes will remain blue.
During the light reaction, the photolysis of water occurs. The breakdown releases hydrogen ion and electrons which are further used for reduction of NADP. The reduced NADPH contributes to the ATP generation.
Now, DCPIP also accepts the electron. So, during the light reaction in test tube exposed to light, the photolysis of water will occur followed by reduction of DCPIP. Thus, it will become colourless. Dark test tube wil not have the same reaction and hence DCPIP will remain blue in colour.
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a nuclear medicine study used to diagnosis pernicious anemia is: group of answer choices coombs antiglobulin test. packed-cell volume. monospot. schilling test.
Pernicious anemia is diagnosed by a schilling test. It is a test of vitamin B12 (cyanocobalamin) absorption by complexing with intrinsic factors.
What is a schilling test? How it was performed?
It is a classic test used clinically to distinguish between gastric and ileal causes of vitamin B12 deficiency.
It is performed by administering a small oral dose of radiolabeled vitamin B12 and, simultaneously within one or two hours, a large intramuscular flushing of nonradiolabeled vitamin B12. The unlabeled B12 saturates vitamin B12 carriers, thus radioactive vitamin B12 absorbed by the intestine is excreted in the urine.
If less than 7% of the administered dose is recovered in the urine, vitamin B12 malabsorption is confirmed.
Let us discuss other options:
Coombs test or antiglobulin test is used to detect antibodies that can bind the antigen on the surface of RBC but cannot agglutinate them.A Packed cell volume test (hematocrit) is used to evaluate the percentage of blood that is made up of red blood cells.The Monospot test is a latex agglutination test used to detect specific heterophile antibodies produces by the immune system in response to EBV infection.Hence schilling test is used to detect pernicious anemia caused due to the deficiency of vitamin B12 (Cyanocobalamin).
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how many tubes of nutrient broth will be inoculated with clostridium sporogenes for the commensalism experiment?
For the commensalism experiment, two tubes of nutritive broth will be injected with Clostridium sporogenes.
Commensalism is a long-term biological relationship (symbiosis) in which individuals of one species profit, while those of the other species suffer neither advantages nor disadvantages. This contrasts with parasitism, where one is harmed and the other benefits, amensalism, where one is harmed while the other is unaffected, mutualism, where both organisms gain from each other, and parasitoidism, which is similar to parasitism except that the parasitoid has a free-living state and eventually kills its host.
The commensal species, which gains from the connection, may ingest nutrients from the host species, which is largely unaffected, or get refuge from it, sustain it, or use it for mobility. A bigger host and a smaller commensal are frequently in a commensal relationship; the host organism is unaltered, whilst the commensal species may exhibit significant structural adaptations commensurate with its habits, as in the case of remoras that travel attached to sharks and other fishes. Pilot fish eat the leftovers from their hosts' meals, whilst remoras consume their hosts' feces. Many birds perch atop the bodies of large herbivorous mammals or feed on the insects that grazing mammals kick up.
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