Bacterial and archaeal ribosomes are known as 70s ribosomes, based on their sedimentation coefficient.
The process of making proteins in a cell takes place at an intercellular structure called a ribosome, which is formed of both RNA and protein. The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that develop into extended chains and fold to create proteins. As a compound of RNA and protein, a ribosome is also referred to as a ribonucleoprotein. It is made up of two smaller and larger subunits. The bigger subunit is where the amino acids are added, and the smaller subunit is where the mRNA binds and is decoded. Protein and ribonucleic acid are both present in both subunits.
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The mars rover curiosity finds a living organism on the red planet. scientists would know that it is eukaryotic and not prokaryotic if ________
The mars rover curiosity finds a living organism on the red planet. scientists would known that it is eukaryotic and not prokaryotic if it has membrane bound organelles.
There is no proof of past life has been found on mars. The environment of red planet has liquid water and may have been habitable for microorganism but habitable condition do not necessarily indicate life. Fossil traces of microscopic bacteria that live in massive marine reefs.
Prokaryotic bacteria well dined nuclei and membrane bond organelles with chromosome which is composed of single , circular ring of DNA. Eukaryotic bacteria is also membrane bounded nucleus in eukaryotes and not in bacteria. DNA is present in nucleus.
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The ________ is the brain structure responsible for the highly developed intelligence of the human species.
The cerebral cortex is the brain structure responsible for the highly developed intelligence of the human species.
What is cerebral cortex?There are hundreds of billions of neurons in the cerebral cortex, and all of them have one of three morphological variations: pyramidal cells, fusiform cells, or stellate cells (granular cells). One of the three is modified in other cell types found in the cortex.Appearance of cerebral cortex:The cerebral cortex has deep sulci and bulges, which are collectively referred to as gyri, that give it a wrinkled appearance.The cerebral cortex's numerous folds and wrinkles provide a larger surface area for an increasing number of neurons to reside, enabling it to process vast amounts of information. The thickness of the human cerebral cortex, which is made up of densely folded sheets of neurons, ranges from 1 to 4.5 mm, with an average thickness of about 2.5 mm.There are between 14 billion and 16 billion nerve cells in the six layers that make up the cerebral cortex.cortex is divided into four lobes: frontal, parietal, temporal and occipital.To learn more about cerebral cortex visit:
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In Biology, a binomial name is:
A. A two syllable name used to identify the species of an organism.
B. A name given to an organism that has Bilateral symmetry.
C. A first name and last name, commonly used in the United States and other westernized cultures.
D. A two part naming system that consists of the Genus name and the Species name.
Answer:
The correct answer is answer D
In Biology, a binomial name is A two part naming system that consists of the Genus name and the Species name.
In biology, a binomial name, also known as a scientific name or Latin name, is a two-part naming system used to uniquely identify and classify species of organisms. This system follows the rules of binomial nomenclature, established by Carl Linnaeus in the 18th century, and is based on Latin or Latinized names.
The binomial name consists of two parts:
Genus Name: The first part of the name represents the genus to which the species belongs. The genus is a higher taxonomic rank that includes a group of closely related species. It is always capitalized and italicized (or underlined if handwritten).Species Name: The second part of the name indicates the specific species within the genus. It is written in lowercase and also italicized (or underlined if handwritten).For example, in the binomial name "Homo sapiens," "Homo" is the genus name, and "sapiens" is the species name. Together, these two names provide a unique and standardized way to identify and refer to a particular species.
The use of binomial names is essential for accurate and clear communication in biological sciences, as common names for organisms can vary across languages and regions. Binomial nomenclature ensures that scientists around the world can refer to the same species using a standardized and universally recognized naming system. It also reflects the evolutionary relationships among organisms, as species within the same genus are more closely related than those in different genera.
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What statement is true about pollution?
Select one:
a.
Pollution is any environmental change that adversely affects living things.
b.
Pollution is a main cause of extinction.
c.
Pollution can lead to disease.
d.
All of these are true about pollution.
Answer:
No.d is correct
hope u like it
Answer:
The correct answer is d. All of these are true about pollution.
Explanation:
Pollution harms living resources and marine ecosystems in direct and indirect ways, resulting in biodiversity loss and harm to marine ecosystems and living resources.
Air pollution can lead to a variety of adverse health outcomes. Lung cancer, heart disease, and respiratory infections are associated with it.
Almost all the same negative health effects that humans suffer from air pollution are also experienced by wildlife. Animals commonly suffer respiratory damage, neurological problems, and skin irritations from these chemicals. The growth rate of plants and crops is reduced when air pollution is sustained over a long period of time.
This is why the correct answer is d. All of these are true about pollution.
Hope it helps :)
Neural control of gfr is mediated by ________ that innervate ________ receptors on vascular smooth muscle causing ________
Neural control of GFR is mediated by Sympathetic neurons that innervate alpha receptors on vascular smooth muscle causing Vasoconstriction.
How is GFR regulated?The sympathetic division of the nervous system regulates the GFR or Glomerular Filtration Rate.GFR is the sum total of filtration rates of all the working nephrons in the kidney.Sympathetic division comes into action when the mean arterial pressure is very low (below 80mmHg).In response to low blood pressure, the medulla releases norepinephrine through sympathetic nerves.Norepinephrine leads to activation of alpha receptors on arteries which cause vasoconstriction.Alpha receptors are more abundant on afferent arterioles.This leads to vasoconstriction (narrowing) of arteries supplying to the glomerulus.This decreases blood flow to glomerulus, leading to decrease in GFR.Learn more about Glomerular Filtration Rate here:
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For fluid resuscitation in hemorrhagic shock, give about _____ of crystalloid for every _____ of blood lost.
For fluid resuscitation in hemorrhagic shock, about 3 ML of crystalloid for every 1 ML blood lost. 3 L of fluid needs to administered to raise the intramuscular volume by 1L.
Fluid administration should continue until the patient's hydrodynamics become stabilized. Crystaloids quickly leak from vascular space, fluid expands the blood volume by 20-30% . Lactated ringer's solution is used balanced salt solution for fluid resuscitation in hemorrhagic shock.
Colloid solution are generally not used. Those who have dehydration and adequate circulatory volume typically free water deficit and hypo-tonic solutions.Lost blood volume with intravenous fluids called crystalliods. Consistency of liquid is thin and saline solution.
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ANSWER IF YOU SEE THIS ITS URGENTTT PLEASE ANSWER IF YOU KNOW THE ANSWER ITS A LEVEL BIOLOGY WILL MARK BRAINLIEST TO A GOOD ANSWER THAT EXPLAIN IT WELL!
Which of these chemical formulae represents a dissacharide? justify your answer
a.) C6H12O6
b.) C5H10O5
c.) C10H18O9
d.) C12H24O12
The chemical formula that represents a disaccharide is [tex]C_{12}H_{24}O_{12}[/tex]. The correct option is D.
What is a disaccharide?A disaccharide is a simple sugar that consists of 2 units of monosaccharides. The 2 monosaccharides are joined together by a glycosidic linkage.
The simplest monosaccharides have the chemical formula [tex]C_6H_{12}O_6[/tex]. Examples of these monosaccharides include glucose, fructose, and galactose.
This means that the ratio of C to H to O in monosaccharides is 1:2:1.
A disaccharide will have 2 units of monosaccharides. This means that the ratio of C to H to O would remain 1:2:1. The only chemical formula that fulfills this criterium is [tex]C_{12}H_{24}O_{12}[/tex].
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what does the model represent?
Answer:
D) a molecule of oxygen
Answer:
An oxygen atom
Explanation:
its not a neutron, nor the oxygen's atomic mass (I hope you'll know what that is), and a molecule of oxygen is two oxygens atoms together, 02. Hope this helps.
The ______ of a prokaryotic cell is the region that contains the dna, some rna, and a few proteins.
The "nucleoid" of a prokaryotic cell is the region that contains the DNA, some RNA, and a few proteins.
What is prokaryotic cell?Prokaryotes are creatures without a nucleus or other organelles in their cells. Bacteria and archaea, two separate groupings of prokaryotes with allegedly independent evolutionary histories, are separated into.
The majority of prokaryotes are tiny, single-celled creatures with a straightforward structure.
Some key features of prokaryotic cell are-
Prokaryotic cells lack intrinsic membrane-bound organelles in their cytoplasm, while being enveloped by a plasma membrane. Prokaryotes differ from eukaryotes, another type of creatures, in that they lack a nucleus as well as other membrane-bound organelles.One circular DNA molecule, or chromosome, makes up the majority of the genetic material carried by prokaryotes. Prokaryotes have a nucleoid in the center of the cell that houses the DNA but is not protected by the nuclear membrane.To know more about prokaryotic cells, here
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Much of the regulation of gluconeogenesis is a result of the inhibition of?
The suppression of glycolysis is responsible for a large portion of the control of gluconeogenesis.
Discussion about the statement:
The cytosol is the site of all glycolysis and gluconeogenesis processes. The rate at which glucose is produced in the body is inversely related to the intake of carbohydrates. The suppression of glycolysis is responsible for a large portion of the control of gluconeogenesis.
Fructose 2,6-bisphosphate is an intermediate that plays a crucial role in controlling both glycolysis and gluconeogenesis. This metabolite's presence can promote glycolysis and prevent gluconeogenesis.
Control of Gluconeogenesis and Glycolysis
At various crucial stages of glycolysis and gluconeogenesis, metabolic control takes place. The catalysts that accelerate each of these stages can be activated or inhibited by outside forces, for example, the quantity of a molecule that comes after. The conversion of glucose and ATP into glucose 6-phosphate is the first controlled step in glycolysis. Keep in mind that hexokinase catalyzes this process. High levels of blood glucose, AMP, and low levels of cellular ATP all trigger the activation of hexokinase. In other words, the glycolysis process is enhanced when blood glucose levels are high. Whenever cellular ATP levels are low and AMP levels are high, glycolysis is also increased. Both of these instances show that the cell is short on energy and may be directly influenced to create additional energy.Learn more about glycolysis here:
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What other compound must be present along with urea for the urease enzyme to break down urea?
Water is the compound must be present along with urea for the break down of urea.Thus, option B is correct.
What does urea break down into?Urea and water combined together and results into the production of carbon dioxide and ammonia with the help of urease enzyme.
Urea + water = Carbon dioxide+ ammonia
Breakdown of urea occurs in a cycle known as urea cycle and it has five important steps:
Formation of carbamoyl phosphateSynthesis of citrullineCleavage of argininosuccinateGlucogenic and ketogenic amino acidsOxidation of Carbon skeleton of amino acidsTherefore,water is the compound must be present during the process of break down of urea.Thus, option B is correct.
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Your question is incomplete,but most probably your full question was,
What other compound must be present along with urea for the urease enzyme to break down urea?
A.ammonia
B.water
C. pyruvic acid
D. carbon dioxide
What portion of the brain is served by the anterior and middle cerebral arteries?
Anterior cerebral arteries:
The majority of the midline regions of the frontal lobes and upper medial parietal lobes of the brain are supplied with oxygenated blood by a pair of cerebral arteries, including the anterior cerebral artery (ACA).Middle cerebral arteries:
The largest of the three main arteries that supply the brain with new blood is the middle cerebral artery (MCA). The internal carotid artery is where it splits off. It provides blood to the frontal, temporal, and parietal lobes' lateral (side) regions.Where are anterior cerebral arteries present?
At the medial end of the lateral cerebral fissure, the internal carotid gives rise to the anterior cerebral artery (ACA). Above the optic nerve, it crosses the anterior perforated material medially and forward before beginning the longitudinal fissure.Where are middle cerebral arteries present?
The largest and second-to-last terminal branch of the internal carotid artery is the middle cerebral artery. It is the most frequently pathologically afflicted blood vessel in the brain and lodges in the lateral sulcus between the frontal and temporal lobes of the brain. It is also a part of the Willis circle.To learn more about Cerebral arteries visit:
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G542x is another cftr allele. If a female heterozygous for g542x bears a child fathered by a male heterozygous for the δf508 allele, what is the probability that the child would be homozygous for the g542x allele, given that neither parent has cf?.
Probability that the child would be homozygous for the g542x allele 0.00
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In the context of nutritional status assessment, height, body weight, and body composition are frequently used?
Dietary assessors in the context of nutritional status assessment ,height , body weight and body composition are frequently used.It is important not only in study of associations between diet and health related outcomes but also for nutritional status of patients in clinical settings.
Anthropometry is the measurement of physical dimension such as height , body weight and composition of human body to provide information related to individuals nutritional status.
It involves the collection of information on food and drink consumed over specific time that is coded and processed to compute intakes of energy and nutrients or others dietary constituents using food composition tables.
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Technically speaking, the term homophobia refers to an excessive ____ homosexuals or homosexual behavior
Technically speaking, the term homophobia refers to an excessive negative attitude towards homosexuals or homosexual behavior.
What are homophobia and sexual orientation discrimination?
The definition of homophobia is the dislike, discomfort, or mistrust of lesbians, gay men, or bisexual persons. Biphobia is the dread, hatred, discomfort, or suspicion of bisexual individuals. Similar to homophobia, transphobia refers to apprehension, hostility, discomfort, or suspicion of transgender, genderqueer, or nonconforming individuals.Learn more about the sexual orientation discrimination with the help of the given link:
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A bacteriophage can be an important part of the genetic engineering process. Determine which of the following structures is not part of a bacteriophage.
A. Injection tube
B. Plasmid ring
C. Genetic material
D. Protein coat
A bacteriophage does not contain a plasmid ring.
What is a bacteriophage?A bacteriophage or phage is a virus which infects bacteria and replicates inside it.They destroy the host cell in which they infect.A bacteriophage consists of nucleic acid molecule (genetic material) surrounded by a protein coat or capsid.The genetic material in bacteriophage can be DNA or RNA which may be circular or linear, single or double stranded.Bacteriophage is formed of a head and a tail. Head consist of nucleic acid and protein coat.Tail consists of collar, base plate, sheath, tail fibers.The tail fibers attach to the host and inject tail tube to release genetic material into the host.A plasmid is an extrachromosomal genetic material of bacterial cell.Learn more about bacteriophage here:
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What is the molarity of an aqueous solution that is 6. 75% glucose C6H12O6 by mass? Density of solution is 1. 03 g/ml. Also calculate the molality as well.
The molarity of an aqueous solution that is 6.75% glucose (C6H12O6) by mass is 3.86 M. The molality of the solution is 0.402m.
Now, an aqueous solution that is 6.75% glucose (C6H12O6) by mass means that 6.75g of glucose is dissolved in 93.25g of water resulting in a 100g solution.
Molar mass of C6H12O6 = 6x12 + 12x1 + 6x16
=72 + 12 + 96 = 180
No. of moles (n) of solute (C6H12O6) = Given mass / Molar mass
= 6.75 / 180 = 0.0375
Molarity (M) is defined as the number of moles of solute dissolved in one liter of solution.
Molarity = Moles of solute / Volume of solution in liter
= 0.0375 / [tex]\frac{1}{103}[/tex] = 3.86M
Molality (m) is defined as the number of moles of the solute per kilogram (kg) of the solvent and is expressed as:
Molality = Moles of solute / Mass of solvent in kg
= 0.0375 / [tex]\frac{93.25}{1000}[/tex] = 0.402m
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The decrease in reproductive function, resulting in a decrease in testosterone and inhibin secretion, is called?
The decrease in reproductive function, resulting in a decrease in testosterone and inhibin secretion, is called male Climacteric or andropause.
Inhibin is a protein secreted by the Sertoli cells in men and by the granulosa cells in women. It inhibits the synthesis and release of the follicle-stimulating hormone in the pituitary gland and reduces the hypothalamic LH releasing hormone content. The testes also produce inhibin B and anti-Müllerian hormone from Sertoli cells, and insulin-like factor 3 and estradiol from the Leydig cells..
The maintenance of inhibin production by the testis requires the support of pituitary hormones, presumably FSH, while seminiferous tubule fluid production requires testosterone, presumably through LH stimulation of Leydig cells.
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Students construct a graphic organizer to illustrate the different levels of biological organization. Which term does the letter x represent
The term that represents the X letter is an organism (organismic level).
What is an organism?In ecology, the organism level represents the fundamental unit that interacts in a particular ecosystem.
The ecosystem level is composed of organism and abiotic factors (e.g., temperature, water resources, etc) that interact to shape a given environment.
In conclusion, the term that represents the X letter is an organism (organismic level).
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What is the composition of the tracts in the cns that link the brain with the rest of the body?
Tracts in the CNS that link the brain with the rest of the body are composed of sensory and motor pathways.
Neural pathways called tracts can be found in the brain and spinal cord (central nervous system). Each tract runs bilaterally, either in a hemi section of the spinal cord or on each side of the cerebral hemisphere. A few of the tracts decussate, or crossover, to move downward or upward on the obverse side.Neurons synapsing onto one another create tracts, and based on where and how they are arranged inside the tract, these neurons can be categorized as first-order, second-order, or third-order neurons.Sensory neurons and motor neurons are both a part of the peripheral nervous system (PNS), which is made up of neurons and neuronal fragments outside of the central nervous system. Motor neurons transport messages from the CNS while sensory neurons bring signals into the CNS.learn more about CNS here: https://brainly.com/question/2114466
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Dee miller has megaloblastic anemia, a blood disorder. Which specialist would dee seek for treatment of this condition?
The specialist that needs a person who suffers from megaloblastic anemia (a blood disorder) is a hematologist.
What is megaloblastic anemia?Megaloblastic anemia is a rare condition associated with problems in Vitamin B12, which is essential in order to transport oxygen in the red blood cells.
Megaloblastic anemia is due to problems with the production of stem cells in the bone marrow, which is involved with malformations in red blood cells.
In conclusion, the specialist that needs a person who suffers from megaloblastic anemia (a blood disorder) is a hematologist.
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Hair texture is determined by the ____________of the individual hair strand. color strength length diameter
Answer:
Diameter of the individual hair
Why is it important to maintain the ph of blood and tissue fluids within normal limits?
It is important to maintain the ph of blood and tissue fluids within normal limits because the structure and function of macromolecules are pH sensitive, and even little variations from normal pH can cause metabolic processes to shut down.
Tissue fluid is found in the spaces around cells. It comes from substances that leak out of blood capillaries (the smallest type of blood vessel). It helps bring oxygen and nutrients to cells and to remove waste products from them.
The two forms of connective tissue in this subcategory are blood and lymph. Both are fluid rather than solid, and neither has the network of extracellular protein fibers that other types of connective tissue have.
Diffusion and filtration processes create tissue fluid from plasma. This fluid fills the intracellular space and serves as a link in the transmission of nourishment, gases, and metabolic end products between blood capillaries, tissue fluid, and lymph.
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Blood flowing into the heart from the venae cavae flows next through the ________ valve.
Blood flowing into the heart from the venae cava flows next through the tricuspid valve.
Our heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium.
Blood that passes superior vena cava and inferior vena cava empty blood into the right atrium. Blood flows through the tricuspid valve into the right ventricle. It then flows through the pulmonic valve into the pulmonary artery before being delivered to the lungs.
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The sugar also known as dextrose, and blood sugar is ________. glucose galactose fructose lactose sucrose
The sugar is also known as dextrose, and blood sugar is glucose. glucose galactose fructose lactose sucrose.
Dextrose is the name of a simple sugar made from corn or wheat it's chemically identical to glucose, or blood sugar.Dextrose injection is a sterile solution used to provide your body with extra water and carbohydrates.
Dextrose works with the aid of speedy increasing the quantity of glucose in your blood. Glucose is found in ingredients wealthy in carbohydrates, together with bread, potatoes, fruit, pasta, and rice. Glucose is a supply of power, and all the cells and organs in your body want glucose to feature properly.
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Ecologist mark is trying to identify the type of pollution that caused excessive algae growth on a river and killed fishes and plants. which type of pollution caused this situation?
Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae.
Factors influencing Nutrient pollution and their effects:
Excessive amounts of nutrients can lead to more serious problems such as low levels of oxygen dissolved in the water. Severe algal growth blocks light that is needed for plants, such as seagrasses, to grow. When the algae and seagrass die, they decay. In the process of decay, the oxygen in the water is used up and this leads to low levels of dissolved oxygen in the water. This, in turn, can kill fish, crabs, oysters, and other aquatic animals.Nutrients come from a variety of different sources. They can occur naturally as a result of weathering of rocks and soil in the watershed and they can also come from the ocean due to mixing of water currents. Scientists are most interested in the nutrients that are related to people living in the coastal zone because human-related inputs are much greater than natural inputs. Because there are increasingly more people living in coastal areas, there are more nutrients entering our coastal waters from wastewater treatment facilities, runoff from land in urban areas during rains, and from farming.All of these factors can lead to increased nutrient pollution.To learn more about nutrient pollution: https://brainly.com/question/23857736
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In the case of a person who consumes a normal, balanced diet, proteins are essential to the body for all of the following except ________.
Production of energy
Other than fat and carbohydrate, one of the dietary macromolecules we acquire from our diet is protein. The small intestine totally breaks down proteins into amino acids after they have first been partially digested in the stomach.
What is a Balanced diet ?A balanced diet is one that includes a variety of foods in the right amounts and ratios to meet the body's needs for calories, proteins, minerals, vitamins, and other nutrients. A small portion of the diet is also set aside for extra nutrients to last through the brief period of leanness.
The small intestine absorbs amino acids, which are then transported to the bloodstream and taken up by body cells for usage in a variety of cellular and physiological activities.Learn more about Balanced diet here:
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When sympathetic activation occurs, there is increased activity in the cardiovascular and respiratory centers of the ________.
When sympathetic activation occurs, there is increased activity in the cardiovascular and respiratory centers of the
Pons and medulla oblongata
What is sympathetic activation?
One of the three divisions of the autonomic nervous system, along with the parasympathetic and enteric nervous systems, is the sympathetic nervous system (SANS or SYNS). The enteric nervous system is occasionally regarded as a component of the autonomic nervous system and other times as a separate entity.
The autonomic nerve system controls the body's automatic movements. The major function of the sympathetic nervous system is to activate the body's fight-or-flight response. However, in order to maintain homeostasis, it is continually active. The parasympathetic neural system, which drives the body to "eat and breed" before (then) "rest-and-digest," is said to be antagonistic to the sympathetic nervous system.
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Miotic apparatus is formed during _____ of cell division.
Mitotic apparatus is formed during prometaphase/metaphase of cell division.
A kind of cell division known as mitosis occurs when a single cell (the mother) divides into two genetically identical daughter cells. Mitosis, when referring to the cell cycle, is the stage of cell division during which the DNA in the cell's nucleus is divided into two identical sets of chromosomes.The term "spindle or mitotic apparatus" in cell biology refers to the cytoskeletal framework that arises in eukaryotic cells during cell division to divide sister chromatids into separate daughter cells.A microtubule-based device called the mitotic spindle apparatus is in charge of chromosomal segregation during cell division. In the spindle, microtubules are categorized based on how they interact with one another at their plus ends.learn more about Mitotic apparatus here: https://brainly.com/question/14155742
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What primarily differentiates the three types of cone photoreceptors in the retina?
The wavelength of light that the three types of cone photoreceptors in the retina are sensitive to primarily differentiates them.
The retina of vertebrate eyes, including the human eye, contains cone cells, or cones, which are photoreceptor cells.
They react differently to light of various wavelengths, and the interaction between these reactions is what gives people their ability to see color.
Contrary to rod cells, which perform better in low light, or the scotopic zone, cones work best in relatively high light, or the photopic region.
S-cones, M-cones, and L-cones are the three main varieties of cones, each with a unique pigment.
These cones are sensitive to the visible light spectrum, which includes short, medium, and long rays of light, respectively.
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