Water is repelled by the phospholipids in the plasma membrane's fatty acid tail regions.
The cell membrane, which is also referred to as the plasma membrane (PM), cytoplasmic membrane, or plasmalemma, is a biological membrane that isolates and safeguards the interior of all cells from the external environment (the extracellular space). The cell membrane is a lipid bilayer made up of two phospholipid layers with cholesterols (a lipid component) positioned between them to maintain the proper fluidity of the membrane at varying temperatures.
Membranes also contain membrane proteins, which include integral proteins that span the membrane and function as membrane transporters as well as peripheral proteins that slackly attach to the exterior (peripheral) side of the cell membrane and function as enzymes to promote interaction with the surrounding environment. Membranes also contain lipids, which are the main structural component of cells.
The cell membrane, the movement of ions, the movement of ions, the movement of ions, the movement of ions, and the selectivelymph. Additionally, cell membranes act as the attachment surface for a number of extracellular structures, such as the cell wall and the carbohydrate layer known as the glycocalyx, as well as the intracellular web of protein fibers known as the cytoskeleton. These extracellular structures include cell adhesion, ion conductivity, and cell signaling. Synthetic biology is the study of reassembling cell membranes artificially.
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which of the following is not a common metabolic/physiological change that occurs in pregnant women? A. increased urine production B. glucose sparing C. decreased blood pressure D. hypermetabolism E.E. increased respiratory rate
One metabolic/physiological shift that does not frequently occur in pregnant women is an increased respiratory rate.
What makes me believe I'm pregnant?A lot of people report having symptoms that resemble pregnancy just before their period. The reason for this is because progesterone levels increase both during early pregnancy and throughout the premenstrual period. 1 In essence, PMS symptoms and early pregnancy symptoms might occasionally be identical.
Where in the early stages of pregnancy does your stomach hurt?During pregnancy, stomach or abdominal discomfort is frequent. It's normal to experience some stomach discomfort in the first trimester. Both your developing womb and hormonal changes are at blame for them.
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the adoption of very similar streamlined body shapes by both sharks and dolphins provides evidence for? 1. cross-breeding
2. life originating in the oceans
3. convergent evolution
4. genetic mutations
3. Convergent evolution. Convergent evolution, as used in evolutionary biology, is the process through which dissimilarly related animals independently develop comparable features to meet comparable needs.
How significant is convergent evolution?Convergent evolution, thus, can be a useful stand-in for repeated evolutionary experiments, and knowledge of how convergent features develop, particularly at the molecular level, has the potential to reveal universal principles governing adaptation.
What is an example of convergence?As an illustration of a convergent plate boundary, consider the Pacific Ring of Fire. Oceanic crust is frequently pushed into the mantle near convergent plate borders, where it starts to melt. Granite, the rock that forms the continents, is formed when magma rises into and through the other plate.
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Would such plants do well in non-agricultural settings, such as in the wild? Explain why not why not
Answer:
Yes,Some Plants would do good some of the greens will reduce but the humans will starve.
atrial ________forces blood throught the AV valve into the ventricle, which is a diastole.
Atrial fibrillationforces blood throught the AV valve into the ventricle, which is a diastole.
What is atrial fibrillation?Atrial fibrillation (AFib) is a type of arrhythmia, or abnormal heart rhythm, in which the atria (the upper chambers of the heart) beat irregularly and rapidly. In AFib, the atria contract in a disorganized and chaotic way, rather than in a coordinated manner. This can cause the blood to pool in the atria, increasing the risk of blood clots forming. If a blood clot from the atria breaks off and travels to the brain, it can cause a stroke.
AFib can also cause symptoms such as palpitations, shortness of breath, and fatigue. AFib can be treated with medications, lifestyle changes, and in some cases, procedures such as ablation or cardioversion.
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factors contributing to harmful algal blooms temperature, stagnant water, abundant light, salinity, turbulence, wind, ocean eddies, upwelling
Algal blooms may be impacted by climate change due to changes in rainfall patterns, salinity changes, and carbon dioxide levels. ocean floor
Discover the causes, symptoms, and causes of toxic algae and cyanobacteria (blue-green algae) blooms, as well as how to spot them.
underlying causes
Fertilizer (for example, from home lawns and agricultural land) (for example, from home lawns and agricultural land)
Sludge from both humans and animals.
runoff from commercial and industrial structures.
When a number of favorable environmental circumstances exist for prodigious algal growth, algae blooms may happen (e.g., increased nutrients, warmer temperature, abundant light, and stable wind conditions).
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Place the following in correct sequence from the formation of a drop of urine to its elimination from the body: 1. bladder 2. nephron 3. urethra 4. ureter 5. collecting duct
2-4-3-5-1
2-5-4-1-3
2-5-3-1-4
2-4-5-1-32-5-4-1-3
More than 1 million nephrons, or functional units, make up each kidney. A nephron is made up of a long, partially coiled renal tubule and a cup-shaped Bowman's capsule.
What is Nephron?A glomerulus, a collection of capillaries, is positioned inside Bowman's capsule.
The proximal convoluted tubule (or simply proximal tubule), which transports the filtrate from Bowman's capsule; the loop of Henle, an extended, hairpin-shaped portion; and the distal convoluted tubule (or distal tubule), which transports the filtrate to a collecting duct, are the three main regions of the renal tubule.
As a result, filtrate travels via Bowman's capsule, a proximal convoluted tubule, a loop of Henle, a distal convoluted tubule, and finally a collecting duct.
Therefore, More than 1 million nephrons, or functional units, make up each kidney. A nephron is made up of a long, partially coiled renal tubule and a cup-shaped Bowman's capsule.
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the fuschia or fuchsia triphylla, is a genus of flowering plants that consists mostly of shrubs or small trees. they were first discovered in the caribbean by
The Fuschia or fuchsia triphylla was first discovered n the Caribbean by French botanist Charles Plumier.
The fuschia or fuchsia triphylla was first discovered by French botanist Charles Plumier in 1696 during his expedition to the Caribbean island of Martinique. Plumier named the plant for German botanist Leonhart Fuchs, who is credited with reviving interest in botanical studies in the 16th century.
He initially described the plant as “Fuchsia triphylla flore coccino,” which translates to “Fuchsia with three leaves and a scarlet flower”. Since Plumier's discovery, the fuchsia has been widely cultivated and is now found growing in temperate and tropical regions throughout the world.
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Many eukaryotic organisms rely on the processes of photosynthesis and cellular respiration to sustain life. Choose the statements that accurately describe the two processes. a. Mitochondria participate in one process and chloroplasts participate in the other. b. Both processes are capable of forming ATP for use as an energy source. c. ATP is used as an alternate energy source in both processes if light is unavailable. d. Both processes use the atmospheric gas oxygen as a reactant. e. Oxygen is a reactant in one process and a product in the other process.
Both processes are capable of forming ATP for use as an energy source, Oxygen is a reactant in one process and a product in the other, which are both carried out by chloroplasts and mitochondria, respectively.
What three byproducts of cellular respiration are produced?ATP, CO2 , and water are the byproducts of cellular respiration. The byproducts of cellular respiration are what we refer to as "breathing" or "respiration". mammals carries blood carbon dioxide back to the lungs and it is released during breathing.
What are the four resources that are essential for photosynthesis?Sunlight, chlorophyll, water, and carbon dioxide are necessary for photosynthesis. All green plants consists chlorophyll, which is found mostly in the leaves. Water from the soil and CO2 from the air are both absorbed by plants. Chlorophyll begins photosynthesis by absorbing solar energy or sunlight.
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which of the following best describes the cells that result from the process of meiosis in mammals? responses they are diploid. they are diploid. they can be used to repair injuries. they can be used to repair injuries. they are genetically different from the parent cell. they are genetically different from the parent cell. they are genetically identical to all the other cells in the body. they are genetically identical to all the other cells in the body. they are identical to each other.
They are genetically different from the parent cell best describes the cells that result from the process of meiosis in mammals.
Meiosis is a form of the mobile department in sexually reproducing organisms that reduces the number of chromosomes in gametes (the intercourse cells, or egg and sperm).
Meiosis is responsible for the formation of sex cells or gametes which are chargeable for sexual reproduction. It turns on the genetic information for the improvement of intercourse cells and deactivates the sporophytic information.
Seeing that cellular division takes place twice at some point of meiosis, one beginning cellular can produce 4 gametes (eggs or sperm). In every spherical division, cells go through these 4 ranges: prophase, metaphase, anaphase, and telophase.
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About 13 different species of finches inhabit the Galápagos Islands today, all descendants of a common ancestor from the South American mainland that arrived a few million years ago. Genetically, there are four distinct lineages, but the 13 species are currently classified among three genera. The first lineage to diverge from the ancestral lineage was the warbler finch (genus Certhidea). Next to diverge was the vegetarian finch (genus Camarhynchus), followed by five tree finch species (also in genus Camarhynchus) and six ground finch species (genus Geospiza).
According to a 1999 study, the vegetarian finch is genetically no more similar to the tree finches than it is to the ground finches, despite the fact that it is placed in the same genus as the tree finches. Based on this finding, it is reasonable to conclude that the vegetarian finch
A. is a hybrid species, resulting from a cross between a ground finch and a tree finch.
B. should be re-classified as a warbler finch.
C. is no more closely related to the tree finches than it is to the ground finches, despite its classification.
D. is not truly a descendent of the original ancestral finch.
C
Based on this finding, it is reasonable to conclude that the vegetarian finch is no more closely related to the tree finches than it is to the ground finches, despite its classification.
What are vegetarian finches?
The Vegetarian Finch, also known as Camarhynchus crassirostris, is typically grouped with many other tree finches, however the genus may also be found in the Platyspiza family. The Vegetarian Finch has a rather round body and is brown and black in the male. According to legend, this species, which has a beak that is short and thick like a parrot's, was among the first to diverge. The Vegetarian Finch can reach for buds, seeds, leaves, and fruits with this type of beak, but they also occasionally consume insects. This finch typically feeds on the top branches of the trees, but on occasion it may descend to the ground to gather young leaves and fruit that has fallen. . The Vegetarian Finches eventually mastered the skill of removing the bark from twigs with their beaks in order to reach the interior sweet, sugar sap, another nutrient-rich food source.
Hence option c is correct
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which of the following is true about the structure of the prokaryotic cell represented in the figure?
The prokaryotic cell's exterior features include a plasma membrane, cell wall, and capsule (or slime layer). Some antibiotics that are used to treat bacterial infections in people and other animals target the bacterial cell wall in their action.
What are the four prokaryotic cells' structures?
There are both exterior and interior structures in a prokaryotic cell. Outside of the cellwall, the bacterial cell has a capsule, flagella, axial filaments, fimbriae, and pili. The interior of the bacterial cell is filled with cytoplasm.
Which statement about a prokaryotic cell is accurate?
The nucleus of prokaryotic cells is poorly defined. Nucleoid is the name given to their genetic material. Organelles in cells with membranes are not present. There is a cell wall around them.
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which of the following statements about puerperal sepsis, aka childbed fever caused by streptococcus pyogenes, is false? group of answer choices t is caused by health care personnel its frequency of occurrence has decreased because of antibiotics and aseptic techniques it is a complication of abortion or childbirth it is transmitted from mother to fetus
The correct answer from the task above which is false about puerperal sepsis is: it is transmitted from mother to fetus.
The correct answer choice is option d.
What is meant by puerperal sepsis?Puerperal sepsis simply refers to one of those infections which is usually manifested in pregnant women prior to their labour or even till a period of about 48 hours after delivery/birth.
That being said, this health infection is not transmitted from mother to fetus but rather as a result of the following:
It could arise a result of complication of abortion or childbirthThe infection could come in from the healthcare workers due to their negligence.In conclusion, it can be deduced from the explanation given above that puerperal sepsis is an infection.
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The 1952 experiment performed by the Lederbergs in which they replica-plated ten million colonies of T1-phage sensitive E. coli to plates containing high concentrations of T1 phage and found a small number of phage-resistant colonies showed that: A) a selecting agent can affect mutation rate in E. coli. B) mutations can arise spontaneously before exposure to the selecting agent. C) mutations in E. coli occur at a relatively high frequency. D) the mutation rate in E. coli fluctuates greatly from one generation to the next. E) the T1 phage can act as a mutagen as well as a selecting agent in E. coli.
Coli to plates containing high concentrations of T1 phage and found a small number of phage-resistant colonies showed that mutations can arise spontaneously before exposure to the selecting agent.
A mutation is a change that occurs in the DNA sequence, either due to mistakes when the DNA is being copied onto the daughter cells or as the result of environmental factors such as UV light and cigarette smoke.
There are different types of Mutations which include Chromosomal aberrations, Point Mutations, and Frameshift Mutations. These can change the proteins which are synthesized from the DNA.
Mutations can have an effect on an organism by means of converting its bodily characteristics (or phenotype) or they could impact the way DNA codes the genetic records (genotype).
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Use the information you learned from the DNA microarray to write an argument to convince smokers to stop smoking. Be sure to reference any differences you saw in gene expression in smokers and nonsmokers studied in the experiment.A big reason you should stop smoking is it can affects Cytochrome P450, which with cancer that gene gets increased, and based on the experiment the only person to not have this gene increased is the non smoker.
A big reason you should stop smoking is it can affects Cytochrome P450, which with cancer that gene gets increased, and based on experiment the only person to not have this gene increased is non smoker.
What inferences are possible from microarray data?We may examine the genes his cancer cells have elevated, decreased, switched on, or turned off using microarray technology. What does it mean if two genes express themselves at the same amounts in both normal and malignant cells? that the cancer cell did not have an impact on the gene.
What does the yellow hue on a DNA microarray mean?A spot that turns yellow indicates that in cancer cells, that gene was neither significantly expressed nor strongly suppressed. These areas (in your experiment) will be clear. No cDNA from the patient has joined the DNA in the gene situated there, as indicated by a black area. This shows that the gene is active.
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routine monitoring of water in a reservoir has found a high count of e. coli. of the following, you would be most concerned that the contaminated water might also contain:
Routine monitoring of water in a reservoir has found a high count of E. coli, you would be most concerned that the contaminated water might also contain: Salmonella.
The presence of E. coli and fecal coliform bacteria suggests that the water may be tainted by waste from humans or animals. If you drink water that contains these wastes, you may experience symptoms like diarrhea, cramps, nausea, and headaches in the short term. Typically, salmonella bacteria are shed through stool (feces) and reside in the intestines of animals and humans. The most common sources of infection for humans are contaminated food and water. As a result, there is a strong possibility that the contaminated water also contains Salmonella.
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based on the antibiotic-resistant bacteria lab, which of the following mechanisms of change in gene frequencies is responsible for the antibiotic resistance of coli in this experiment?
In the lab, bacteria can be specifically engineered to become resistant to a certain antibiotic, which can be used to study the mechanisms of change in gene frequencies responsible for this resistance. In the antibiotic-resistant bacteria lab, the gene frequency responsible for the antibiotic resistance of coli is likely the result of mutation, selection, and/or recombination.
Mutation is a random and permanent change in a gene or chromosome that can be passed down to subsequent generations. In the case of the antibiotic-resistant bacteria lab, the bacteria must have undergone a mutation in order to become resistant to the antibiotic. This mutation could occur naturally or it could be deliberately introduced through gene engineering. Regardless, the mutation must have been beneficial in order for it to be passed down and increase in frequency in the population.
Selection is the process by which individuals with advantageous traits are more likely to survive and reproduce than those without. In the case of the antibiotic-resistant bacteria lab, the bacteria that had the beneficial mutation were more likely to survive and reproduce than those without, leading to an increase in frequency of the mutation in the population.
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22) in comparing all three major muscle types, which one of the following statements best describes the differences between them?
In comparing all three major muscle types, cardiac muscle can be stimulated only by nerves, whereas smooth and skeletal muscle contract spontaneously statement best describe the differences between them.
What are muscle types?
The three different forms of muscle tissue are skeletal, smooth, and cardiac. Cardiac muscle cells are found in the heart's walls, where they can be seen as being striped (or striated) and controlled by an involuntary process. Except for the heart, smooth muscle fibres are found in the walls of hollow visceral organs (such as the liver, pancreas, and intestines), are spindle-shaped, and are similarly controlled involuntarily. Muscles that are connected to the bone contain skeletal muscle fibres. They appear striated and are controlled voluntarily.
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In comparing all three major muscle types, cardiac muscle can be stimulated only by nerves, whereas smooth and skeletal muscle contract spontaneously statement best describe the differences between them.
What are muscle types?The three different forms of muscle tissue are skeletal, smooth, and cardiac. Cardiac muscle cells are found in the heart's walls, where they can be seen as being striped (or striated) and controlled by an involuntary process. Except for the heart, smooth muscle fibres are found in the walls of hollow visceral organs (such as the liver, pancreas, and intestines), are spindle-shaped, and are similarly controlled involuntarily. Muscles that are connected to the bone contain skeletal muscle fibres. They appear striated and are controlled voluntarily.
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if a company presently has b+ credit rating, which one of the following will not contribute to achieving a higher credit rating?
The possibility that a borrower won't fulfil their loan commitments is measured by default risk. When they have a bad credit rating and little cash flow, he is at a higher risk of defaulting.
Is a high default risk ratio good?Due to the fact that their free cash flows are three or more times larger than their annual principal payments, firms with a default risk ratio within 1.0 and 3.0 are categorised as "medium risk," and those with a default risk ratio of 3.0 or higher are categorised as "low risk."
What happens when default risk increases?Almost all forms of loan extensions subject lenders to the risk of default. As a result, there is a larger necessary return, which raises the interest rate.
How does default risk affect yield?Price declines when default rates increase. The yield to maturity increases equivalently. Price moves closer to zero as the default near one.
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True or false: transposons can move within the dna, but can only insert at a place where a transposon already exists.
The statement transposons can move within the DNA, but can only insert at a place where a transposon already exists is false.
What is a transposon or transposable element?A transposon or transposable element is any jumping nucleotide sequence within the genome of an individual which has the ability to insert in virtually any position where the transposase enzyme used during this process may recognize.
Therefore, with this data, we can see that a transposon or transposable element can insert in different positions of the genome through the recognition sites by the transposase enzyme that mediates this process.
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Answer to this required:
Answer:
c
Explanation:
because the stomach secreates HCL which
changes the pH to acidic conditions making the
amylase enzymes not to work on their best
which of the following statements about protozoa is true? which of the following statements about protozoa is true? some protozoa reproduce by schizogony, a process that is virtually identical to the budding process that happens in some yeast. when conditions become harsh, some protozoa can form a protective capsule, which is called a cyst. all protozoa can undergo sexual reproduction. most protozoa are photosynthetic.
The following statement about protozoa is true that when conditions become harsh, some protozoa can form a protective capsule, which is called a cyst.
Protozoa are unicellular, non-cellular eukaryotic organisms that belong to the kingdom Protista. Trophozoites are the vegetative, reproductive, and feeding forms of protozoa. Under certain conditions, some protozoa may produce a cyst, a protective structure that helps them survive harsh environments.
Cysts enable some illnesses to survive outside of their host. Most ecosystems on earth contain protozoa, single-celled organisms. All higher animals are infected with one or more protozoan species, despite the fact that the vast majority of species are free-living.
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when a dorsal root of a single spinal cord segment is cut, the corresponding dermatome on that side of the body loses all sensation.
The most common symptoms of spinal root avulsion injuries include neuropathic pain, sensory and autonomic dysfunction loss, paralysis of denervated muscles, and damage to both the ventral and dorsal roots of the spine.
Damage to a spinal nerve can result in discomfort, heightened sensitivity, numbness, and muscle weakness. There are various nerve roots from which pain might come. Pain that originates from a single nerve root is referred to as radicular pain. The output to the skeletal muscles would be cut off if a spinal nerve's dorsal root was severed. At that level, the spinal cord is unable to process information. Visceral organ output would be stopped.
Therefore, neuropathic pain, sensory & autonomic dysfunction loss, paralysis of denervated muscles, and injury to both the ventral and dorsal roots of the spine are among the most typical signs of spinal root avulsion injuries.
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the endoneuriummultiple choicesurrounds nerve cell bodies.surrounds individual axons and their schwann cells.bundles axons into fascicles.bundles fascicles into nerves.surrounds nerve tracts in the spinal cord.
The option, epineurium bundles fascicles into nerve, is the correct response.
The outermost layer of connective tissue that surrounds the entire nerve is known as the epineurium. All of the nerve fascicles and any blood arteries that supply the nerve are enclosed by this dense, wavy connective tissue. These blood arteries' more delicate branches enter the perineurium. In addition to the blood vessels that nourish the nerve, lymphocytes and fibroblasts are also present and help to produce the collagen fibres that make up the epineurium's support structure. Lymphocytes and fibroblasts are essential for maintaining and repairing the surrounding tissues in addition to supporting the structure.
Two layers of the spinal meninges, the arachnoid and the dura, invaginate the spinal nerve as it exits the vertebral canal through an intervertebral foramen to create a dural sleeve of connective tissue, or the epineurium. This sleeve's external epineurium, which is located on the outside, allows for longitudinal nerve excursion and longitudinal stress absorption.
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An accelerated heartbeat is to a slowed heartbeat as the_____ nervous system is to the __ nervous system. A) somatic; autonomic B) autonomic ;somatic C) sympathetic ;parasympathetic D) parasympathetic ;sympathetic
An accelerated heartbeat is to a slowed heartbeat as the sympathetic nervous system is to the parasympathetic nervous system.
What do you mean by the Nervous system?
The nervous system is a complex network of nerves and cells that carries signals between different parts of the body. It controls both voluntary actions, such as walking and talking, as well as involuntary actions, such as breathing and digesting food. The nervous system is made up of the central nervous system, which includes the brain and spinal cord, and the peripheral nervous system, which includes all the nerves that extend from the central nervous system to the rest of the body.
The body's "fight or flight" response, which is characterised by an increase in heart rate, is brought on by the sympathetic nervous system. The body's "rest and digest" response, which is characterised by a drop in heart rate, is brought on by the parasympathetic nervous system. As a result, the parasympathetic nervous system causes a slowed heartbeat while the sympathetic nervous system causes an accelerated heartbeat.
Hence, Option C is correct.
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a culture of spirogyra (a photosynthetic alga) is maintained in a water solution containing dissolved carbon dioxide and a source of phosphates but lacking nitrogen compounds. a researcher determines the rates of synthesis of several organic compounds found in the spirogyra before and after several weeks in the water solution. which of the following graphs best illustrates a likely result of the experiment? hint: think about which of these macromolecules contain nitrogen and how lacking nitrogen would impact the building of these molecules. select only one answer choice.
B)Graph be shows proteins and nucleic acids decreasing with carbohydrates and lipids staying the same with time.Without a source of nitrogen, the Spirogyra cannot synthesize proteins or nucleic acids, both of which contain nitrogen. This answer reflects that the student is able to represent graphically the exchange of molecules between an organism and its environment and the use of these molecules in synthesis
Which one of the following best illustrates how water's characteristics contribute to the this physiological process?Thru a phase change from liquid to gas, a high vaporization heat for water enables the body to expel more heat.
Which one of the following statements best explains how bile salts cause sulfur powder too sink?Bile salts reduce urine's surface tension, which causes sulphur powder to sink.
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homeotic genes encode transcription factors that control the expression of genes responsible for specific anatomical structure
Hox genes, which are transcription factor proteins with a homeodomain and are encoded by the majority of animal homeotic genes.
Hox genes are activated by a cascade of regulatory genes; the proteins that early genes encode control how later genes are expressed. Fruit flies, mice, and humans are among the animals with hox genes transcriptional regulator For instance, homeotic genes regulate how the body develops and these genes encode transcription factors that tell cells to generate different body parts. In order to provide effects that are complementary and essential for the orderly development of... gene, a homeotic protein can activate one gene while repressing another. homing gene. These genes produce proteins known as transcription factors that instruct cells to generate different body components.
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Sequence the blood vessels in the pulmonary circuit starting from right ventricle and ending at left atrium.
A drop of blood should travel through the right atrium, right ventricle, lungs, pulmonary veins, left atrium, left ventricle, aorta, arteries, arterioles, capillaries, venules, veins, and vena cavae in the proper order.
What are blood vessels also called?There are three types of blood vessels: Your arteries carry blood away from your heart. Veins allow blood to return to the heart. Capillaries, the smallest blood vessels, connect arteries and veins.
What are the blood vessels' functions?In the blood, vessels move waste away between organs and tissues and carry nutrients to those tissues. The vasculature's role in oxygenating the organism serves as one of its main functions and important roles. The aorta has the fastest blood flow. Blood flow rate and blood vessel bridge area have an inverse relationship.
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What does this photograph show?
Answer:
It is a Soil Creep.
Explanation:
If it is not, sorry.
The continuous downward movement of soil or regolith (loose rock and silt) is called soil creep or solifluction. Therefore, the correct option is B.
This occurs as a result of repeated freeze-thaw cycles or wet-dry cycles that cause expansion and contraction of soil particles. On gentle slopes, soil sliding is often observed, and is characterized by the slow, steady descent of soil particles over time.
Individual soil particles are lifted up, obliterated, and then gravity pulls them downward during the process of soil creep. By bending trees or fences, or by creating terraces—small, stair-like features on the surface of a slope, this slow movement can produce stunning effects.
Therefore, the correct option is B
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a cell that responds to a signal molecule is distinguished from a cell that does not respond by the fact that it has
That is a receptor molecules though, key feature by which we can distinguish the cell that can receive signals from the cell. The cell is the primary structural and functional unit of all living organisms.
A variety of macromolecules, such as proteins, DNA, and RNA, as well as a large number of small molecules that constitute nutrients and metabolites are found in each cell's cytoplasm, which is encircled by a membrane. The word cellular, which means "small apartment" in Latin, is where the phrase gets its name.
Protein synthesis, DNA repair, replication, and motility are just a few of the operations that cells can carry out internally in addition to developing specialized capabilities. Cells can migrate around and specialize within the cell. Most cells are measured in micrometers due to their tiny size.
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tissue-specific stem cells are found most commonly in: embryonic stem cells (esc) may be obtained from which of the following tissues:
Embryonic stem cells (ESC) from a five-day-old blastocyst can be harvested.
These embryonic stem cells are between three and five days old. An embryo at this stage is known as a blastocyst and contains 150 cells or less. They are pluripotent stem cells, which can differentiate into any form of body cell or additional stem cells (ploo-RIP-uh-tunt).
The inner cell mass of the human blastocyst, an early stage of the growing embryo lasting from the fourth to the seventh day after fertilization, contains embryonic stem cells (ESCs). After the seventh day, they vanish in a typical embryo's growth and the three layers of embryonic tissue start to form.
Embryos produce embryonic stem cells.
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