There is no six-legged starfish in existence. Fixation may be to blame. Fixation is a condition in which there is only one allele in the population and the other allele is extinct.
Given that in total 26 starfish are normal and 1 has 6 legs.
Genotypic frequency of 6 legs is 1/27 =0.037.
Genotypic frequency is always 1 and is given by p2 + 2pq + q2 = 1.
Allelic frequency = p + q = 1
So, frequency of p = 1-0.19 = 0.81
After 2 years, the Chi-square value:
Observed Expected O-E (O-E)2 (O-E)2/E
5 leg: 0.81 0.6 0.16 0.0256 0.039385
6 leg: 0.19 0.35 -0.16 0.0256 0.073143
0.112527
So Chi-square value is 0.112527.
Genotypic frequency of 6 legs is 4/31 =0.129
q2 = 0.129q = 0.35P = 1 - 0.35
P = 0.65
So new allelic frequency for 6 legs is 0.35.
New allelic frequency for 5 legs is 0.65.
This random change of allelic frequency is called as genetic drift.
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Question correction:
On your Spring Break in Mexico, you take a break to count the starfish in a tidal pool. You notice that there is a rare recessive trait that causes the starfish to have 6 legs instead of 5. Of the 27 starfish you can find, only 1 has 6 legs. What are the allele frequencies for this population? Two years later, you return to the same beach and count the starfish again. This time you find 4 starfish out of 31 that have 6 legs. Are the genotype frequencies the same as two years earlier? Test using Chi square. If it is not, calculate the new allele frequencies. Given that the current mutation rate is O and that there is no natural selection acting on these starfish, what is this random change in allele frequency called?)
Seven years later, you come back to the beach. This time you can find no starfish with 6 legs. Given the most recent allele frequencies you know, is this what you would expect? (What is the complete loss of a allele called?)
a homozygous red-eyed female drosophila mates with a red-eyed male drosophila. what proportion of the female offspring will have white eyes?
Thus, 50% of male and female offspring are red and white eyed. In terms of genetics, being homozygous means having inherited the same alleles (versions) of a genomic marker from both biological parents. A person who possesses two identical copies of a genetic marker is said to be homozygous for that marker.
Both homozygous (two alleles for brown eyes) and heterozygous individuals can have brown eyes (one for brown and one for blue). Contrary to the recessive blue eye allele, this one is dominant. To have blue eyes, you must possess two identical blue eye alleles. Allele pairings are categorized using the terms homozygous and heterozygous.
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____ cells are involved in important human experiences, including memory, alzheimer's disease, pain, and certain psychological disorders.
glial cells are involved in important human experiences, including memory, Alzheimer's disease, pain, and certain psychological disorders.
Glial cells are a general term for a variety of glial cell types, such as microglial, astrocytes, and Schwann cells, each of which has a specific function in the body. Glial cells are non-neuronal cells that are found in both the central nervous system and the peripheral nervous system. They provide physical and metabolic support to neurons, including neuronal insulation and communication as well as nutrient and waste transport. Each variety of glial cells carries out particular tasks that maintain the brain operating.
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How does an increase in the CO₂ concentration in the blood affect the pH of cerebrospinal fluid?
The rate of CO₂ diffusion into the cerebral fluid rises with the increase in the CO₂ content in the bloodstream. The formation of carbonic acid when CO₂ reacts with water lowers the pH of the cerebral fluid.
The breakdown of carbonic acid results in the release of hydrogen ions. The CSF fluid's pH rises as a result of the hydrogen ions. At the cellular level, carbon dioxide is released as a consequence of the metabolic process (glycolysis and citric acid cycle). It is expelled from the body by way of breathing out. The amount of carbon dioxide in the body is crucial for maintaining proper blood pH, internal respiration, and many other processes. Retention of carbon dioxide in the body leads to hypercapnia. There are three basic ways that the bloodstream carries the carbon dioxide from the peripheral tissues to the lungs. These are carbaminohemoglobin, bicarbonates, and dissolved gas.The tissues that encircle the neurological system contain cerebrospinal fluid (brain and spinal cord). This liquid flushes carbon dioxide and other metabolic waste from the brain.Due to the synthesis of carbolic acid at high CO₂ levels, the bloodstream's hydrogen ion concentration increases. Acidosis and a drop of pH are the outcomes. Thus, as blood carbon dioxide levels rise, the cerebrospinal fluid becomes more acidic.Learn more about the cerebrospinal fluid with the help of the given link:
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When your first child is six months old, you hang a tire swing from a tree limb in your backyard. The bottom of the tire is six inches from the ground. When your child graduates college 22 years later, the tree is now ten feet taller than it was when you hung the tire swing. Neglecting soil erosion and any increased thickness of the limb, how far from the ground is the bottom of the tire?.
There will be about 6 inches between the bottom of the tire which is hanging in the branch of the tree and the ground.
The primary cause of this is because a tree's development always takes the shape of radial growth. In this case, the axis of the tree or plant continues to produce additional branches.
The leaves continue to develop, and the primary branch produces several other little branches. There are two ways that trees grow. Primary growth refers to growth that occurs at the root and shoot tips and results in height and length increases.
Secondary growth refers to development that makes stems and branches thicker. Small regions known as apical meristems are the sites of primary growth.
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Most prairies experience regular fires, typically every few years. If these disturbances were relatively modest, how would the species diversity of a prairie likely be affected if no burning occurred for 100 years? Explain your answer.
If fire disturbances were relatively modest, then the species diversity of a prairie likely would be affected because certain adapted species might exclude less competitive species.
What is the effect of modest fire on ecological succession?The main effect of modest fire on ecological succession is to maintain species that otherwise would be eliminated and therefore it affects diversity by hampering the succession of less competitive species in the area.
In conclusion, if fire disturbances were relatively modest, then the species diversity of a prairie likely would be affected because certain adapted species might exclude less competitive species.
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Which of the following is characteristic of most terrestrial biomes? a. a distribution predicted almost entirely by rock and soil patterns b. clear boundaries between adjacent biomes c. vegetation demonstrating vertical layering d. cold winter months
The characteristic of most terrestrial biomes are vegetation demonstrating vertical layering and cold winter months.
What is terrestrial biomes?A terrestrial biome is a region of land with a similar climate, plant and animal groups, and flora and fauna. Different terrestrial biomes are typically identified by their vegetation, which include trees, shrubs, and grasses.
The most important abiotic element influencing the spread of terrestrial biomes is climate. The growing season and soil quality are determined by climate, which includes temperature and precipitation. It is the single most important factor influencing the number and diversity of plants in terrestrial biomes.
Two characteristics determine a terrestrial biome?Biomes are large-scale habitats differentiated by distinct temperature ranges and precipitation levels. These two factors have an impact on the types of vegetation and animal life that can occur in certain places.
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convert 5mL to hectoliters (conversion factor: 1mL= 0.00001 hectoliters)
-50 hectoliters
-0.5 hectoliters
-0.005 hectoliters
-0.00005 hectoliters
Taking into account the change of units, the correct answer is the last option: 5 mL equals 0.00005 hectoliters.
Rule of threeThe rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.
If the relationship between the magnitudes is direct, the direct rule of three must be applied with the following formula must be followed, being a, b and c known data and x the variable to be calculated:
a ⇒ b
c ⇒ x
So: x= (c×b) ÷a
The direct rule of three is the rule applied in this case where there is a change of units.
Change of units in this caseTo perform in this case the conversion of units, you must first know that 1 mL= 0.00001 hectoliters.
So, you can apply the following rule of three: if 1 mL equals 0.00001 hectoliters, 5 mL equals how many hectoliters?
1 mL ⇒ 0.00001 hectoliters
5 mL ⇒ x
So: x=(5 mL× 0.00001 hectoliters)÷ 1 mL
Solving:
x= 0.00005 hectoliters
In summary, the correct answer is the last option: 5 mL equals 0.00005 hectoliters.
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The slopes of the flying and swimming lines are very similar. Based on your answer to question 2 , if the energy cost of a 2 -g swimming animal is 1.2 cal/ kg . m , what is the estimated energy cost of a 2-kg swimming animal?
Estimated energy cost of a 2-kg swimming animal will be 1200cal/kg
Estimated cost = 1.2cal/ kg x 2 kg/2 -g
Estimated cost = 1200cal/kg
What Energy is used in swimming ?Potential energy is present in the muscles that will propel you ahead at the beginning, and kinetic energy is present in your movement through the water. You eventually come to a stop as the water uses up all the energy. Heat is created by the energy.
The occurrence of many mechanisms for energy recycling in the muscle cells during exercise underlies the significance of energy zones in swimming. Non-aerobic metabolism (creatine phosphate), anaerobic metabolism (anaerobic glycolysis), and aerobic metabolism are the three basic mechanisms for energy recycling.Learn more about Swimming here:
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The drug furosemide blocks the cotransporters for Na+ and Cl- in the ascending limb of the loop of Henle. What effect would you expect this drug to have on urine volume?
Loop diuretics such as furosemide, bumetanide, and torsemide reduce net reabsorption by blocking the Na+-K+-Cl cotransporters at the apical surface of the thick ascending limb (TAL) cells.
How does furosemide affect the loop of Henle?
Loop diuretics (e.g., furosemide) reduce Na+ and Cl ion reabsorption in the thick ascending limb of the loop of Henle, lowering effective medullary interstitial osmolality.
Loop diuretics such as furosemide, bumetanide, and torsemide reduce net reabsorption by blocking the Na+-K+-Cl cotransporters at the apical surface of the thick ascending limb (TAL) cells. These diuretics are the most potent of all diuretics, inhibiting the reabsorption of 25% of filtered sodium along the TAL.
Furthermore, the nephron segments beyond the TAL typically lack the ability to completely reabsorb the volume of fluid exiting the TAL. As a result, a significant portion of the solute rejected by the TAL is excreted.
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In a car accident, a person sustained major trauma to his brain and the spinal cord region of his neck. damage, in this case, was mainly to areas of the __________ nervous system.
In a car accident, a person sustained major trauma to his brain and the spinal cord region of his neck. damage, in this case, was mainly to areas of the central nervous system.
Central nervous system comprises of the brain and spinal cord which together performs the process of receiving, processing, controlling, and coordinating the functions of the body.
The brain is covered with cranium and the skull bone while the spinal cord is protected by the vertebrae. Both the brain and the spinal cord consist of grey matter and white matter.
The spinal cords continuous from the medulla that is the last part of the brain. Hence when the person got a damage in the brain and the spinal cord he got injured in the central nervous system.
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Person who proposed evolution as a scientific theory was
Answer:
Charles Darwin
Explanation:
Answer:The answer is Charles Darwin
Explanation:Please give brainliest if right.
Opening your mouth (lowering the jaw inferiorly) is an example of the joint movement called?
Opening your mouth (lowering the jaw inferiorly) is an example of the joint movement called Depression.
The place where two or more joints met to make the movement of the body possible is called joint.
the degree of movement that can be acquired by any articulation in the body without restriction from the tissues around is called joint movement.
The joint movement is of two types-
Depression- the downward movement of the structures of the body. For example depression in the shoulder bone would be when shoulder joint, along with the arm attached to it moves downward.
Elevation- the upward movement of scapula and shoulder.
These movements are used to support the movement of the shoulders.
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An enzyme that is catalyzing a reaction at the maximum rate is said to be ______.
An enzyme that is catalyzing a reaction at the maximum rate is said to be saturated.
An enzyme can be described as a biological catalyst that speeds up a reaction. Optimal conditions should be provided to an enzyme in order for it to work best.
The enzymes have a specific site, known as the active site, where a substrate fits in order to speed up a reaction.
As we keep on increasing the concentration of a substrate, more and more active sites of that particular enzyme get filled. At this point, the catalysis activity is at the maximum rate as there are no more active sites left. At this stage, we say that the enzyme is saturated. The rate of a reaction will be maximum when an enzyme is saturated.
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Which statement best describes the difference in responses of effector B cells (plasma cells) and cytotoxic T cells? a. B cells confer active immunity; cytotoxic T cells confer passive immunity. b. B cells respond the first time a pathogen is present; cytotoxic T cells respond subsequent times. c. B cells secrete antibodies against a pathogen; cytotoxic T cells kill pathogen-infected host cells. d. B cells carry out the cell-mediated response; cytotoxic T cells carry out the humoral response.
When B cells interact with any antigens it gets divided into B plasma cells and B memory cells. Plasma B cells produce antibodies against antigens or pathogens found in the blood.
What is the difference between effector B cells (plasma cells) and cytotoxic T cells?
When B cells interact with any antigens it gets divided into B plasma cells and B memory cells. Plasma B cells produce antibodies against antigens or pathogens found in the blood. These antibodies bind to the antigen's epitope and aid in its destruction by phagocytic cells.
Pathogen elimination by cytotoxic T cells is a completely different process. Cytotoxic T cells bind to pathogen-infected cells and release cytotoxic enzymes that kill the pathogen-infected cell.
As a result, B-cells secrete antibodies against pathogens, and cytotoxic T cells kill pathogen-infected cells.
Therefore, the correct answer is option E.)B cells secrete antibodies against a virus; cytotoxic T cells kill virus-infected cells.
The complete question is:
Which statement best describes the difference in responses of effector B cells (plasma cells) and cytotoxic T cells?
A.)B cells respond the first time the invader is present; cytotoxic T cells respond subsequent times.
B.)B cells confer active immunity; cytotoxic T cells confer passive immunity.
C.)B cells accomplish the cell-mediated response; cytotoxic T cells accomplish the humoral response.
D.)B cells kill viruses directly; cytotoxic T cells kill virus-infected cells.
E.)B cells secrete antibodies against a virus; cytotoxic T cells kill virus-infected cells.
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Respiration uses the _________________ you eat and the _________________ you breathe to make _______________, ______________________________, and ___________________________.
Respiration uses the energy from food that you eat and the oxygen from the air you breathe to make energy rich compounds and provide energy to do tasks.
All living cells engage in respiration, a chemical process that releases energy from glucose. With oxygen present, aerobic respiration produces more energy but does so more gradually. We get our energy from the stuff we eat. Our bodies break down the food we eat by combining it in the stomach with fluids (acids and enzymes). The carbohydrate (sugars and starches) in food is broken down into another type of sugar, called glucose, during digestion in the stomach.
Carbohydrates, lipids, and proteins are the three main categories of fuel molecules that provide energy to humans. These molecules' kinetic, thermal, and other chemical forms are created from their potential chemical energy.
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lidar based biomass and crop nitrogen estimates for rapid, non-destructive assessment of wheat nitrogen status,"
In early development green TLS can be helpful to enhance nitrogen management.
To enhance nitrogen management decisions, crop nitrogen optical remote sensing is being developed for diagnostic use. To calculate the nitrogen nutrition index, dry mass per unit area of nitrogen and concentration functions are taken. NNI is the ratio of the actual concentration of nitrogen in percent and minimum nitrogen concentration in percent. During stages of early growth, to know crop nitrogen status optical remote sensing is essential. But there are high risks of errors because of the influence of soil spectral reflection.
If TLS point data are used for deriving the actual concentration of nitrogen from green and quantifying physical W in Terrestrial LiDAR then this can pacify the errors. In an experiment, Green TLS measurements of winter wheat for two seasons were collected. Based on the experiment, it was observed that there exists a strong relationship between the intensity return of green laser and % Na.
Therefore, in early development green TLS can be helpful to enhance nitrogen management.
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the cell that attacks and destroys foreign cells and body cells that have been compromised by a virus or have become cancerous is known as the
Answer: Killer T Cell
Explanation:
This should be correct
Scientists often use measures of "higher-order thinking" to assess intelligence in other animals. For example, birds are judged to have sophisticated thought processes because they can use tools and make use of abstract concepts. What problems do you see in defining intelligence in these ways?
Animals with higher intelligence have certain brain features that make them smarter. The neocortex is one of these, and it is necessary for complex cognition. Animals such as birds are less intelligent because they lack these structures..
Briefing:All mammals have a neocortex, albeit the neocortex's dimensions and structural makeup vary widely among mammalian taxa. The neocortex performs cognitive, perceptual, logical, and motor control activities.
Are there neocortex in birds?There is no neocortex in the tiny brains of birds, and they have different structures and connections than primates do. This should not come as a surprise considering that more nearly 200 million years ago, birds diverged from the evolutionary pathway that led to mammals, then to primates, and ultimately to humans.
How do birds manage to be so smart?Birds generally have brains that are larger than their heads. The tactile, as well as olfactory senses, as well as olfactory senses, are only fully realized in a small number of groups, but the auditory and visual senses are quite well developed in the majority of species. As well as calling and singing, birds also use visual cues to communicate.
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Snap dragon flower color displays incomplete dominance. Which is the likely phenotypic ratio of the f2 progeny resulting from a monohybrid cross of true-breeding parents with white and red flowers?.
The most likely phenotypic ratio of the F2 progeny from a monohybrid cross is 1 red : 2 pink : 1 white.
The monohybrid cross of true-breeding parents produces a phenotype and also a genotype in the F1 and F2 progenies. The phenotypic ratio refers to the proportion of offspring that exhibit a certain characteristic or set of traits. The phenotype of F1 progeny of a monohybrid cross exhibited by incomplete dominance as in snapdragon flower produces an intermediate of the parental traits. While, the F2 progeny produces varying phenotypes. It produces a phenotypic ratio of 1:2:1 as red:pink:white.
A phenotypic ratio is a numerical comparison of two phenotypes that demonstrates how frequently the occurrence of one trait corresponds with another. The phenotypic ratio produced from a test cross is used by researchers to determine the gene expression for generations of an organism. A phenotypic ratio compares an organism's potential outcomes depending on its outward appearance.
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Explain why graph D levels off. Use enzyme and substrate in your explanation. Then tell how you could prevent graph D from leveling off.
In graph D, at a certain stage, it is leveled because the enzymatic reaction reached the peak, where even with the increase of the substrate, the enzyme could not catalyze the reaction anymore by space, availability of other factors, etc. a method of not flattening the graph and making available factors available for greater catalysis of the target enzyme.
What catalysis reaction?To catalyze a reaction, an enzyme will take up (bind) one or more reactant molecules. These molecules are the substrates of enzymes. In some reactions, a substrate is broken down into several products. In others, two substrates come together to form a larger molecule or exchange pieces.
With this information, we can conclude that Substrate is the reagent on which an enzyme acts. When an enzyme binds to its substrate, the enzyme-substrate complex is formed. This binding takes place in a specific region, called the active site.
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Trying to understand how genes that once helped our ancestors survive and reproduce but now leave us prone to anxiety disorders is a goal of?
Trying to understand how genes that once helped our ancestors survive and reproduce but now leave us prone to anxiety disorders is a goal of evolutionary theory.
Theory of Evolution states that organisms have changed gradually over a long period of time to form new organismsOrganic Evolution that states tha gradual changes in living organisms have resulted in more complex organisms"The father of evolution" Charles Darwin who believed that a process called natural selection explains how organisms evolved over timeAdaptation is Changing of a species that results in its being better suited to its environmentVariation Exists within every population, mostly in the form of inherited traits (alleles)To know more about Theory of Evolution visit : https://brainly.com/question/24797142
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What is not a function of the peroxisome? break down fatty acids synthesize certain phospholipids protein synthesis oxidize toxic substances
Protein synthesis is actually not the function of the peroxisome.
Peroxisomes are the organelles that sequester the diverse oxidative reactions and also play the important roles in the metabolism, reactive and oxygen species the detoxification, and the signaling. the Oxidative pathways housed in the peroxisomes include the fatty acid β-oxidation, which also contributes to the embryogenesis, the seedling the growth, and the stomatal opening. the Peroxisomes are the eukaryotic organelles whose has major functions are the lipid metabolism and the detoxification.
They are spherical or to ovoid structures with the phospholipid bilayer and the collection of the enzymes in their core. the Peroxisomes play a key role in the oxidation of the specific biomolecules. They also have contribute to the biosynthesis of the membrane lipids known as teh plasmalogens. In plant cells, the peroxisomes carry out the additional functions, including the recycling of the carbon from phosphoglycolate and during photorespiration.
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when conducting his initial genetic experiments, gregor mendel chose the pea plant as his research organism. he began conducting his genetic research on pea plant traits such as plant height, seed color, and seed shape. he started by using true‑breeding, or pure‑breeding, lines of pea plants. select the characteristics of a true‑breeding plant line
The characteristics of a true-breeding plant line include;
a) in most cases, is homozygous for the trait of interest
d)when selfed, all of the offspring show the trait of interest
How to illustrate the information?A pair of homozygous parents, known as purelines, who cross and have identical offspring as a result constitute a true breeding plant.
Homozygous recessive parents give birth to recessive children, and homozygous dominant parents give birth to dominant children. Parents that are both homozygous dominant and recessive give birth to dominant children.
When these are selfed, the identical qualities (trait of interest) are produced once more. Most of the time, a genuine breeding plant is homozygous for the desired trait, and when selfed, all of the offspring will exhibit the desired characteristic.
Therefore, the characteristics of a true-breeding plant line include;
a) in most cases, is homozygous for the trait of interest
d)when selfed, all of the offspring show the trait of interest
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When conducting his initial genetic experiments, Gregor Mendel chose the pea plant as his research organism. He began conducting his genetic research on pea plant traits such as plant height, seed color, and seed shape. He started by using true-breeding, or pure-breeding, lines of pea plants. Select the characteristics of a true-breeding plant line.
[more than ONE.]
a) in most cases, is homozygous for the trait of interest
b)always contributes dominant alleles to offspring
c)always contributes recessive alleles to offspring
d)when selfed, all of the offspring show the trait of interest
____ are little molecular machines (eukaryotic cell structures) that move vesicles and organelles throughout the cytoplasm of the cell.
Answer: kinesins
Explanation:
They eat and drink out of vessels of earth or glass, which make an agreeable appearance, though formed of brittle materials; while they make their chamber-pots and close-stools of gold and silver, and that not only in their public halls but in their private houses. of the same metals they likewise make chains and fetters for their slaves, to some of which, as a badge of infamy, they hang an earring of gold, and make others wear a chain or a coronet of the same metal; and thus they take care by all possible means to render gold and silver of no esteem . . . â€"utopia, thomas more which details develop the central idea by giving examples of ways the utopians make gold and silver less valuable? check all that apply. the utopians drink from glass cups. the utopians make chamber-pots out of gold. the utopians have public halls and private houses the utopians use gold to chain enslaved people. the utopians work hard to make gold and silver seem less valuable.
Answer:
B, and D
The Utopians make chamber-pots out of gold.
The Utopians use gold to chain enslaved people.
Explanation:
Answer:xB and D: The Utopians make chamber-pots out of gold.The Utopians use gold to chain enslaved people.
Explanation:I hope it helps 2023
place each of the labels into the proper category in order to indicate whether they relate to anatomy or physiology.
The correct labeling is given below:
AnatomyStudy of formEach kidney contains approximately 6-10 pyramidsThe human heart is comprised of four chambersThe brachial artery gives rise to the ulnar and radial arteriesThe brain is composed of two hemispheresMitochondria are cellular organelles more numerous in active cellsThe major muscle located at the back of the upper arm has three heads or originsPhysiologyStudy of functionCellular energy requires the body's production of ATPGlucose (a form of simple carbohydrate) is a necessary fuel for the brainHeart cells are capable of contracting on their own because of autorhythmicityThe long-term acid-base balance of the body is controlled by the kidneysThe above labels all show the proper label which they fall under anatomy or physiology.
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the disease called multiple sclerosis involves an immune response against myelin of the central nervous system, causing scar formation (sclerosis) within the neural tissue. how would this affect nerve impulse conduction?
In multiple sclerosis the impulses are suppressed or stopped causing scar formation (sclerosis) within the neural tissue.
Multiple sclerosis (MS) can paralyze the brain and spinal cord (central nervous system). Myelin, the protective sheath that protects nerve fibers, is attacked by the immune system in MS, affecting communication between the brain and body. This condition can eventually lead to neurodegeneration or irreversible disability. Signs and symptoms of MS vary widely, depending on the degree of nerve damage and the nerves affected. Some people with multiple sclerosis lose the ability to walk on their own or become unable to walk at all, while others walk long distances without developing new symptoms. Axons are properly protected by the myelin sheath and these neurons perform their intended function. When the myelin sheath is destroyed in multiple sclerosis-affected nerves, the nerve axons become demyelinated.Therefore, blockage of impulses is the correct answer.
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One study of 781 men and women age 21 found a clear relationship between elevated blood levels of ________ (which correspond to lower brain levels of the chemical) and violence in men.
One study of 781 men and women age 21 found a clear relationship between elevated blood levels of serotonin (which correspond to lower brain levels of the chemical) and violence in men.
Serotonin is a chemical works as a messenger between the body and the brain. It has an important role in the functions like digestion, sleep, mood, wound healing, blood clotting, nausea and sexual desire.
It is also said to be associated with top to bottom neurobiological cycles associated with aggression. Individuals with elevated level of serotonin in the blood are said to be more prone to aggression and violence in men.
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pelvic incidence: a fundamental pelvic parameter for three-dimensional regulation of spinal sagittal curves
In this work, the pelvic incidence is proposed as the primary anatomical criterion for controlling the spinal balance.
The sagittal characteristics of the pelvis and spine were examined in adult participants with normal and scoliotic curves. Statistical analysis was used to assess the relationship between pelvic orientation and spinal sagittal balance. Both normal and scoliotic participants showed a high correlation between the anatomical characteristic of pelvic incidence and the sacral slope, which heavily influences lumbar lordosis.This network of relationships between the pelvis and spine acquires a three-dimensional quality when the Cobb angle and apical vertebral rotation are taken into consideration. A predictive equation of lordosis is postulated. The primary axis of the spine's sagittal equilibrium appears to be the pelvic incidence. It regulates spinal curves in accordance with the other parameters' adaptability.To learn more about spinal sagittal curves visit:
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a transcription factor contains an amphipathic helix that is essential for the factor's function (allowing it form a dimer). which of the following mutations resulting in amino acid changes would most likely disrupt its function?
Because valine is an essential amino acid that the body cannot generate on its own, it is converted from valine to methionine. Methionine must be present in appropriate amounts in the diet.
An amino acid is defined as:Amino and carboxylic acid functional groups can both be found in organic compounds known as amino acids. Alpha-amino acids, which are the building blocks of proteins and are among the hundreds of distinct amino acids found in nature, are by far the most widespread. There are just 22 alpha amino acids in the genetic code.
What four tasks do amino acids perform?Protein building components. Despite both D- and non-L-amino acids being present in nature, only L-amino acids can be polymerized to form proteins.Biological barriers.Storage of nitrogen.Creation of different compounds.To know more about Amino Acids visit:
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