Based on the structures discussed about neuronal anatomy, an action potential is more likely to travel _____________________. Group of answer choices from axon hillock to dendrite. from axon terminal to soma. from soma to axon terminal.

Answers

Answer 1

Answer:

From soma to axon terminal.

Explanation:

The signal travels in the neurons in the form of an action potential or the ions or the electrical impulse. The electrical impulse is generated in the axon hillock located one end of the cell body of the neuron which contains the nucleus.

The generated electrical impulse travels in the one direction from the soma or the axon hillock to the axon terminal via the axon ans cannot travel in both directions due to the refractory phase.

Thus, From soma to axon terminal is the correct answer.


Related Questions

_________________ was the father of scientific management. Select one: a. Henry Gantt b. Elton Mayo c. Frank Gilbreth d. Frederick Taylor

Answers

D. Frederick Taylor because I learned it in class today and I searched it up

This geologic era is known as the age of aquatic plants and animals. a. Precambrian b. Mesozoic c. Cenozoic d. Paleozoic 2. Which answer choice most aptly describes metamorphic rocks

Answers

Answer:

Option (D)

Explanation:

The Paleozoic Era refers to the time, from about 540 million years ago to 250 million years ago. During this era, there occurred drastic changes on earth. was a time of great change on Earth.

Life first originated in water, and with time the evolutionary process occurred and gave rise to the formation of numerous varieties of living species that dwelled in both the land as well as in water.

During this Paleozoic era, the primitive aquatic plants appeared, which were gradually widely spread over the large seas and oceans. There also occurred marine organisms such as trilobites, for the first time during the Cambrian period of the Paleozoic era. By the Ordovician period, these aquatic plants and animals were abundant, due to which it was commonly referred to as the age of aquatic plants and animals.

By the end of this era, there occurred a heavy mass extinction event, that wiped out almost 75-80% of all the living species on earth.

The Paleozoic era most aptly describes the metamorphic rocks as mot of the metamorphic rocks found on earth belongs to this era.

Thus, the correct answer is option (D).

N 9 Viruses use the host's machinery to make copies of themselves. However, some human viruses require a type of replication that humans do not normally do. For example, humans normally do not have the ability to convert RNA into DNA. How can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires?

Answers

Answer:

This is because  the Viron  has in its genome a specialized code  for synthesising any missed enzyme for replication that is lacking in the host cell.

An example is the replication of the human  DNA cells by the Immunodeficiency virus(HIV) . Human  cells only have  enzymes for  copying  DNA templates, and   lacks the enzyme to convert the HIV  RNA genome  to human DNA.However these viruses have  in its genome; code for synthesising its own  RNA polymerase enzymes that copies  or transcribed  the   human DNA to HIV RNA.

 This  ability of the viral cell  to code  for the host's enzyme  has a therapeutic effect. Drugs can be targeted at the  viral polymerase enzymes to reduce the replication and therefore toxicity in the host cells.

Explanation:

Helen Fisher suggests that "through evolution humans have developed a set of neurochemicals that drive an 'evolutionary trajectory of loving'." Which of the following is a neurochemical that she sees as important in human sexuality?1. lactose2. dopamine3. pyrethrin4. melanin

Answers

Answer:

2. dopamine

Explanation:

Dopamine is one of the neurochemicals involved in the transmission of signals between the neurons of the brain. It is usually referred to as “the feel good” “happy” hormone that is released when stimulated by engaging in a pleasurable experience or activity. Dopamine controls the emotional and mental processes of humans. It is important in sexuality of human as it is responsible for the pleasurable feelings of satisfaction we experience.

An important challenge to traditional (pre-1860) ideas about species was the observation that seemingly dissimilar organisms, such as hummingbirds, humans, and whales, have similar skeletal structures. This most directly suggested to biologists that ____________.
a) only the best-adapted organisms can survive
b) advantageous changes can be passed along to offspring
c) most evolution occurs rapidly following a mass extinction
d) dissimilar organisms might have evolved from a distant, common ancestor
e) all of the above

Answers

Answer:

Option-D

Explanation:

One of the common belief before the Darwin about the species was that the species can change over time but they do not evolve into another species that is the species do not share the common ancestor.

The collected evidence that the similarity in the skeletal system of the distantly related species like in the humming bird, the whales and the humans suggested that they have evolved from the common ancestor. This observation was the challenge to the pre- Darwinian ideas.

Thus, Option-D is the correct answer.

What activity does cell 1 undertake to contribute to the body's defense against injury and infection? synthesis of protein fibers used to rebuild damaged tissue phagocytosis of foreign materials secretion of chemicals that trigger inflammation differentiation to form red blood cells?

Answers

Answer:

Phagocytosis of foreign materials.

Explanation:

The immune cells of the body helps to fight against infections and kill the pathogens. The different immune cells are white blood cells including eosinophils, lymphocyte and macrophages.

Macrophages are the immune cells that has the ability to eat the cells and phagocytose the pathogens. The macrophages plays an important role in the immune system as they reach at the site of the infections and injury and phagocytose the foreign materials.

Thus, the correct answer is option (2).

Final answer:

Cell 1, a white blood cell, contributes to the body’s defense against injury and infection through phagocytosis (engulfing and destroying foreign materials) and secretions of chemicals to trigger inflammation. They however do not directly differentiate to form red blood cells.

Explanation:

The activity that cell 1, commonly known as a white blood cell or leukocyte, often undertakes to contribute to the body's defense against injury and infection is phagocytosis. This important function involves engulfing and destroying foreign materials, such as pathogens. It's an integral part of the body's immune response. These cells also participate in the secretion of chemicals that trigger inflammation. This helps to isolate the affected area and prevent the spread of pathogens while attracting more white blood cells to the area to fight off the infection. Differentiation to form red blood cells is not a direct function of leukocyte cells but of stem cells in the bone marrow.

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Which vegetation type found in the Russian Federation represents a cold-resistant, coniferous forest?

Answers

Answer: Taiga.

Explanation:

Taiga is a very cold forest, it is found in the Northern Hemisphere below the South of the Arctic circle. It doubles as the driest and coldest forest in the world, it is also known as the boreal forest, composed of evergreen trees with scaled leafs and also leafs that bears cones and are needle like. This forest experience long winters.

The Taiga forest in Russia is about 5800km which happens to be the largest in the world, this area is completely covered by ice, even the soil in this region is permanently frozen.

Which term describes the individual in a pedigree whose phenotype was first brought to the attention of a medical researcher?
A. Proband
B. Allele
C. Progeny
D. Sibship

Answers

Answer:

Proband

Explanation:

In medical genetics, a proband is used to refer to the first person or individual in a pedigree whose phenotype is first brought out to attention of a medical researcher or the first affected family member to seek medical attention for a genetic disorder.

A proband can be male or female.

Proposito will refer to the male proband and it is denoted by a shaded square  whereas proposita is a female proband denoted by a shaded circle.

A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is the first fly to arrive on this island and the only fly to arrive in this way. Thousands of years later, her numerous offspring occupy the island, but none of them resembles her. There are, instead, several species, each of which eats only a certain type of food. None of the species can fly and their balancing organs (halteres) are now used in courtship displays. The male members of each species bear modified halteres that are unique in appearance to their species. Females bear vestigial halteres. The ranges of all of the daughter species overlap.If the malesʹ halteres have species-specific size, shape, color, and use in courtship displays, and if the speciesʹ ranges overlap, then the speciation events may have been driven, at least in part, by which of the following?
A) autopolyploidy
B) allopolyploidy
C) species selection
D) sexual selection
E) habitat differentiation

Answers

Answer:

The correct answer is option D) "sexual selection".

Explanation:

Sexual selection is a type of natural selection at which species of one sex chose their biological mates based on specific traits that represent an advantageous trait for the species. In this case, if the males halteres are used in courtship displays and the females select them in base of its size, shape and color, the speciation events may have been driven, at least in part, by sexual selection.

The correct answer is sexual selection.

Which structure receives information from the hair cells of the inner ear and conveys that information to the brain's auditory system?

Answers

Answer:

Cochlea

Explanation:

This is comprised of fluid filled spiral canals separated by a movable membrane. These allow transmission of sound vibrations to reach the sensory hair cells. The cochlea is coiled and long to increase the surface area for attachment of sensory hair cells.

Final answer:

The structure that receives information from the hair cells of the inner ear and conveys it to the brain's auditory system is the cochlea.

Explanation:

The structure that receives information from the hair cells of the inner ear and conveys that information to the brain's auditory system is the cochlea. When sound waves cause fluid waves in the cochlea, the bending of hair cells stimulates the auditory nerve, which carries the auditory information to the brain.

Auditory perception is not a one-way street. The brain can also send signals back to the cochlea, resulting in the modification of the outer hair cell length. This alters the hair cells' response to certain sound frequencies, demonstrating our auditory system's sophisticated modulation capabilities.

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Reaction rates
1. Suppose that the enzymes that catalyze the dehydration synthesis and hydrolysis reactions that build and break down organic compounds are sensitive to temperature. They operate most quickly at 30°C and become slower as the
2. At 20°C the enzyme that catalyzes the breakdown of polysaccharides functions at 1 reaction every 20 microseconds. If this enzyme catalyzes hydrolysis reactions of a very long polysaccharide molecule for 120 microseconds, into how many segments would this long polysaccharide be cut?
3. At 20°C the enzyme that catalyzes the synthesis of triglycerides functions at 1 reaction every 25 microseconds. If this enzyme catalyzes dehydration synthesis reactions for 450 microseconds, bonding fatty acids to glycerol, what is the maximum number of complete triglycerides that could be formed if no fatty acids were bonded to glycerol at the beginning of the reactions?
4. At 25°C the enzyme that catalyzes the hydrolysis of fatty acids from triglycerides functions at 1 reaction every 6 microseconds. If this enzyme catalyzes hydrolysis reactions for 96 microseconds, what is the maximum number of glycerol molecules that could be stripped of all of their fatty acids?
5. At 25°C the enzyme that catalyzes the hydrolysis of proteins functions at 1 reaction every 3 microseconds. If this enzyme catalyzes hydrolysis reactions of a very long polypeptide molecule for 27 microseconds, how many segments would the polypeptide be cut into?

Answers

Answer:

1. These enzymes operate most quickly at 30°C and become slower as the temperature is lower, and also when is higher.

2. Six fragments

3. Eighteen complete triglycerides

4. Sixteen glycerol molecules

5. Nine peptides

Explanation:

Question 1. it's known that at low temperatures the movement of particles is slower, and being 30°C the optimal temperature for these enzymes to work, below 30°C these enzymes will work slower. As these enzymes are also temperature-sensitive, at higher temperatures they tend to denature, and will work slower as temperature increases, and will stop when are totally denatured

For questions 2 to 5, we divide the reaction time in any of the group of enzymes involved in catalysis, between the 1 reaction time to obtain the performance ratio.  That means number of fragments, segments, or molecules rendered after hydrolysis, or synthesis, in the respective given sort of catalysis.

Which of the following correctly describes polyphyletic groups?

organisms that share all of the same traits
organisms that share a common trait, inherited from a common ancestor
organisms that share a common ancestor, but leave out some of the descendants
organisms that happen to share a common trait, even though they evolved

Answers

Answer:organisms that happen to share a common trait, even though they evolved

Explanation: polyphyletic groups have similar characteristics but

that have been grouped together

They do not share an immediate common ancestor.

Polyphyletic group is characterized by organisms that happen to share a common trait.

Polyphyletic groups are groups of organisms that include species with similar characteristics that have evolved from more than one ancestor. These characteristics may appear to be similar due to convergent evolution rather than deriving from a common ancestor.

_____ includes crude comments or sexual jokes and behaviors that convey hostility toward a particular gender.

Answers

Answer:

Gender Harrassment

Explanation:

This could also be called sexism.

A change in the responsiveness of the sensory system based on the average level of surrounding stimulation is called sensory _____.

Answers

Answer:

Sensory adaptation.

Explanation:

An exposure to constant or prolonged stimulus will slowly decrease our response.For example, when we rested our arm or hand on the table then the surface of the table will abruptly feel against our hand.Sensory adaptation helps us in daily life work by decreasing our response to constant stimulus that's why we give our attention to other environmental aspects. If our response will remain constant to prolonged stimulus then we can't detect new or important environmental aspects.

_______ is the study of how living things interact with each other and their environment

Answers

Answer:

Ecology

Explanation:

Ecology is the study of biotic and abiotic factors of an ecosystem and the interactions between them.

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Final answer:

Ecology is the field of biology that deals with the interactions of living things with each other and their environment. It includes studying relationships between organisms and their surroundings and trying to understand the balance of life in the natural world.

Explanation:

Ecology is the study of how living things interact with each other and their environment. This can involve examining the relationships and interactions between organisms, ranging from microscopic bacteria to large mammals, and their surroundings.

For example, ecologists might explore how tree populations impact the soil in a forest, how predators influence the behavior and population of their prey, or how pollution in a stream affects fish populations.

Overall, the goal of ecology is to understand the balance of life in the natural world.

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A client is diagnosed with peripheral arterial disease. A review of the client's chart shows an ankle-brachial index (ABI) on the right of 0.45. This indicates that the right foot has which of the following?
a. No arterial insufficiency
b. Very mild arterial insufficiency
c. Moderate to severe arterial insufficiency
d. Tissue loss to that foot

Answers

Answer:

The correct answer is option c.

Explanation:

The ABI or the ankle-brachial index examination refers to a noninvasive and brisk way to determine PAD or peripheral artery disease. The disease takes place when narrowed arteries diminish the flow of blood to the limbs. The condition can result in leg pain at the time of walking and enhances the chances of stroke and heart attack.  

On the basis of ABI, one can find that a healthy individual lacking arterial insufficiency exhibits an ABI of about 10. Those with an ABI of 0.95 to 0.5 shows minor to modest arterial insufficiency. The individuals with an ABI of less than 0.50 exhibits ischemic rest pain. Those with the loss of tissue show extreme ischemia and an ABI of 0.25 or less.  

Collect a large array of colorful poisonous and non-poisonous mushrooms; also capture a mushroom-eating animal, such as frog. Present a hungry frog with a choice of mushrooms that have been dyed or painted a drab poisonous and non-poisonous mushrooms color versus others treated with a solution that is identical to the dye or paint used but uncolored. Record which mushrooms the animal eats. Repeat the test with one more animal and the same mushrooms.

Answers

Answer:

Many mushrooms are extremely colorful. One hypothesis is that the colors serve as a warning to prevent animals from eating mushrooms, much like the bright yellow and black stripes on wasps help to deter potential predators. Design an experiment capable of testing this hypothesis.

Explanation:

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In a study of native Alaskans and Greenland Inuits, it was found that these populations have a high per capita fish consumption and some of the lowest rates of heart disease in the world. The investigators postulated that fish oils in the diet reduce the risk of death from heart disease; their postulate would be considered to be a(n)_________________

Answers

Answer:

Hypothesis

Explanation:

A hypothesis is simply defined as the idea or an explanation that can be tested by conducting experiments and studying it.

The above-given condition can be considered as a hypothesis, because several studies have been made on the fish oils that reflected the advantages of it, thereby helping in the medical diagnostics.

According to the research studies, it has been found that the oil obtained from the fishes are used as supplements and these help in the reduction of risk factors that are associated with cardiovascular events such as heart attack. It has also been found that the supplements comprising Vitamin D decrease the chances of developing cancer in human bodies.

Darker skin is more prevalent in high-UV areas. Dr. Jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. On what evidence did she base this hypothesis?

Answers

Answer:

In  environments with a high level of UV radiation darker skin protects against the harmful effects of UV radiation.  According to the evidence, melanin is found in the upper layer of the skin  human and absorbs UV radiation, which protects cells against the harmful effects of UV light. The genetic determine the type of melanin and the amount  of melanin present in the cells of an individual. Ultraviolet radiation causes damages DNA and disrupts normal chemical reactions in cells. These processes are greatly mitigated by eumelanin that is abundant in dark skin. This condition also gives protection of folate metabolism against deficiencies caused by strong UV radiation, there is evidence from epidemiological studies that indicates an association between dark pigmentation and a lower rate of neural tube defects due to lower decomposition rates folate.

During which phase would penicillin, an antibiotic that inhibits cell-wall synthesis, be most effective?

Answers

Answer:

Explanation:

I would need help to

Penicillin, an antibiotic that inhibits cell-wall synthesis, would be most effective during the bacterial cell's growth and division phase, which is known as the "log" or "exponential" phase.

During this phase, bacteria actively replicate and grow, leading to the synthesis of new cell wall material to accommodate the increasing cell size. Penicillin targets the enzymes responsible for building the bacterial cell wall by inhibiting peptidoglycan cross-linking.

In the log phase, bacteria are most vulnerable to antibiotics that disrupt cell wall synthesis because they are actively producing and modifying their cell walls. When penicillin is introduced during this phase, it interferes with the construction of the cell wall, causing the bacteria to weaken and eventually burst due to the osmotic pressure imbalance. Other phases, like the stationary phase or the lag phase, have reduced metabolic activity and may exhibit antibiotic resistance mechanisms, making penicillin less effective. Therefore, targeting the log phase ensures the highest efficacy in combating bacterial infections with penicillin.

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The body's internal environment is separated into compartments by barriers, including epithelial barriers, which may or may not allow for the movements of molecules from one compartment to the next. Which of the following terms most accurately describes these membranes? Semipermeable or selectively permeable

Answers

Answer:

Semi Permeable or selectively permeable

Explanation:

The multicellular organisms are made of the cells which contain the cell membrane. The cell membrane is composed of the phospholipids and the protein molecules which provides important properties to the membrane.

The membrane acts as the semi-permeable or selectively permeable membrane as it selects the molecules to be passed through it into and out of the cell.

In the given question, the property of the barrier which may or may not allow the molecules to pass through it is due to the selective nature of the membrane and thus the membrane is selectively membrane.

Thus, Semi-Permeable or selectively permeable is correct.

The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose transport. Explain why the rate increased. How well did the results compare with your prediction?

Answers

Final answer:

The rate of glucose transport increased due to the presence of more glucose carriers, which facilitated the transport of glucose into the cell. The results of the experiment should align with the prediction of increased transport rate.

Explanation:

The rate of glucose transport increased when more glucose carriers were present because there were more transport proteins available to facilitate the movement of glucose across the cell membrane. These transport proteins, known as glucose carriers or glucose transporters, bind to glucose molecules and transport them into the cell.

By increasing the number of glucose carriers, the rate of glucose transport can be enhanced because there are more carriers available to transport glucose. This increases the efficiency of glucose uptake by the cell.

The results of the experiment should compare well with the prediction that an increase in the number of glucose carriers would lead to an increase in the rate of glucose transport. If more carriers were present, there would be a greater capacity for glucose transport, resulting in a higher rate of transport.

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Durkheim uses the term ______ to describe the disorientation and anxiety members of a society experience when they no longer have shared beliefs, values, and standards for conduct.

Answers

Answer:

Durkheim uses the term _anomie_ to describe the disorientation and anxiety members of a society experience when they no longer have shared beliefs, values, and standards for conduct.

Explanation:

David Émile Durkheim was a French sociologist who established the academic discipline of sociology which is commonly called as the principal architect of modern social science.

Anomie is

"the condition in which society provides little moral guidance to individuals". (See attached image for more clarity)

If a solute is moving through a phospholipid bilayer from an area of higher concentration to an area of lower concentration without the assistance of a protein, the manner of the transport must be:_____________
a. active transport
b. facilitated diffusion
c. simple diffusion
d. any of above, depending of the solute
e. solutes cannot cross phospholipids

Answers

Answer:

D because it depends on the size of solute

Explanation:

the particles moving from higher concentration to lower concentration

During exposure to elevated glucose, a yeast cell's membrane glucose transporters will rapidly increase so the cell can import glucose. Which would represent the signal for the yeast cell?

Answers

Answer:

Answer is glucose.

Explanation:

Glucose is very important to the yeast cell. Because, it is known to be the energy and carbon source to the yeast cell.

Apart from the importance mentioned, the glucose also act as a signaling molecule.This means that , it can regulate the physiology aspects of the yeast cell.

It should be noted that, a signaling molecule can be described as a molecule capable of transmitting information between or among the cells.

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for the two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. The F1are intercrossed to produce the F2.
a) What will the phenotypic ratio be in the F2 generation?
b) If an F1 plant is backcrossed with the bitter, yellow spotted parent what phenotypes and proportions are expected in the offspring?
c) If an F1 plant is backcrossed with the sweet, nonspotted parent what phenotypes and proportions are expected in the offspring?

Answers

Answer:

A) 9:3:3:1

B) All bitter fruit, yellow spotted offsprings

C) Phenotypes are bitter yellow spotted (4), bitter no spot (4), sweet yellow spot (4), and sweet no spot (4). 1:1:1:1

Explanation:

This is a typical dihybrid cross involving two genes, one coding for fruit taste and the other for spot color. The allele for bitter taste (B) and yellow spot (S) is dominant over the allele for sweet taste (b) and no spot (s) respectively.

Hence, a heterozygous F1 resulting from a cross between an homozygous dominant (bitter fruit, yellow spot) and homozygous recessive (sweet fruit, no spot) will have a BbSs genotype. The heterozygous F1 offsprings are self-crossed and produce gametes BS, Bs, bS, bs. (See punnet square). The F2 offsprings will have the following phenotypes: Bitter fruit, yellow spot (9)

Bitter fruit, no spot (3)

Sweet fruit, yellow spot (3)

Sweet fruit, no spot (1)

Back cross between a F1 offspring (BbSs) and homozygous dominant parent (BBSS) will produce all bitter fruit, yellow spot offsprings (see attached image). BBSS (4), BBSs (4), BbSS (4), and BbSs (4) are the offsprings' genotypes.

For the back cross between a F1 offspring (BbSs) and a homozygous recessive (bbss) parent, the Phenotypes with their proportions are as follows:

Bitter fruit, yellow spot (BbSs, 4)

Bitter fruit, no spot (Bbss, 4)

Sweet fruit, yellow spot (bbSs, 4)

Sweet fruit, no spot (bbss, 4).

Final answer:

The phenotypic ratio in the F2 generation from crossing two heterozygous watermelon plants (BbSs) is 9:3:3:1. A backcross of an F1 plant with a homozygous bitter, yellow spotted parent results in 100% bitter, spotted offspring. A backcross with a homozygous sweet, non-spotted parent yields a 1:1:1:1 ratio of phenotypes.

Explanation:

In classic Mendelian genetics, the cross between a homozygous bitter fruit, yellow-spotted watermelon plant (BBSS) and a homozygous sweet fruit, non-spotted watermelon plant (bbss) results in the F1 generation all being heterozygous (BbSs) since bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s).

Phenotypic Ratio in the F2 Generation

The intercrossing of the F1 generation (BbSs) would result in the F2 generation having a phenotypic ratio of 9:3:3:1. This is because each characteristic (bitter vs sweet and spotted vs non-spotted) is inherited independently, resulting in four possible phenotype combinations: bitter with spots, bitter without spots, sweet with spots, and sweet without spots.

Backcross with Bitter, Yellow Spotted Parent

If an F1 plant (BbSs) is backcrossed with the bitter, yellow spotted parent (BBSS), the expected phenotypes and proportions in the offspring would be all bitter with spots (100% B-S-), due to the dominance of the bitter and spotted traits.

Backcross with Sweet, Nonspotted Parent

Similarly, if an F1 plant (BbSs) is backcrossed with the sweet, non-spotted parent (bbss), the resulting phenotypes and proportions expected in the offspring would be a 1:1:1:1 ratio. This results from the combination of the F1 heterozygous traits with the recessive sweet, non-spotted parent's traits.

What is one way in which microbiologists can distinguish different bacteria that are similar in morphology and staining characteristics?

Answers

Answer: Biochemical testing

Explanation:

The biochemical testing is the method which is used to differentiate the bacterial species which is similar in morphology and staining conditions.

The microbiologists previously used gram staining but this technique is not much specific. Now the modern technique is biochemical testing which uses different testing method for more specific testing of the bacterial species.

Biochemical tests includes hydrogen sulfide production, citric acid utilization, methyl red, fermentation.

ATP is required for the contraction of a sarcomere and thus a muscle fiber. At death, the production of ATP ceases and the ATP stores in a cell are quickly used up. The cell's membranes become permeable to calcium and calcium enters the cytosol of the cell and attaches to troponin, removing tropomyosin from the actin active sites. Myosin attaches to the actin active sites and the muscle contracts for several cycles until the ATP stores are depleted. The muscles are then unable to relax. This postmortem contraction of the muscles is called rigor mortis. Rigor mortis is ultimately caused by a lack of ATP that would, if present, (1) allow calcium to be pumped out of the cytosol and into the sarcoplasmic reticulum and (2) __________.

Answers

Answer:

2. Break down the myosin-actin bridge and cause relaxation. ATP replaces ADP to cause this relaxation. ADP causes the continuous binding of action to myosin thus preventing relaxation. It's action continues in rigor motifs. But ATP presence helps to breaks this link and enhance Relaxation

A human ova that contains 23 chromosomes joins a human sperm that contains 23 chromosomes, resulting in a zygote that has 47 chromosomes. The process that creates this is called______________

Answers

Answer:

fertilization.

Explanation:

During fertilization, male and female gametes are fused to form a zygote. The male gametes in humans are called sperms. Sperms are formed by meiosis in sperm mother cells and have a haploid number of chromosomes (n=23). Similarly, the female gamete in humans is an egg which is a product of meiosis and is haploid (n=23). The fusion of these two haploid cells occurs in the oviduct of females in humans and form the diploid zygote with 2n=46. This process is called fertilization.

The process, which creates 47 chromosomes in the given question is known as non-disjunction.

Non-disjunction

It is a phenomenon in which the pair of homologous chromosomes has failed to separate at the time of cell differentiation, such that both the chromosomes go to one of the daughter cell and none to the other one.

It results in errors in chromosome number like trisomy 21 also known as Down syndrome.

Trisomy is characterized by an additional chromosome, that is, an individual with trisomy possess 47 chromosomes in place of 46.

Thus, the process is known as non-disjunction.

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Select the correct answer from each drop-down menu. A population of frogs inhabits a lake. If the resource availability of the lake changes, the population may to use the resources that are available. As a result, the population would exhibit .

Answers

Final answer:

Populations of frogs may exhibit ecological plasticity by shifting distribution patterns in response to changes in resource availability in a lake.

Explanation:

Populations are dynamic entities consisting of all species living within a specific area. When the resource availability of a habitat changes, the population of frogs in a lake may adapt to use the available resources. This adaptation is known as ecological plasticity, which refers to the ability of a population to adjust its behaviors and characteristics in response to environmental changes. The population may exhibit a shift in its distribution pattern and become more randomly distributed in the lake in response to lower energy flowing into the pond. This shift from clumped to random distribution is a way for the population to optimize its use of limited resources.

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A proposed new project has projected sales of $177,000, costs of $89,000, and depreciation of $24,600. The tax rate is 24 percent. Calculate operating cash flow using the four different approaches gas exchange in cells is an example ofa.) infusionb.)diffusionc.)mitosis Sometimes called the coverage ratio, this ratio measures the risk that interest payments will not be made if earnings decrease. a.Number of days' sales in inventory b.Times interest earned ratio c.Ratio of fixed assets to long-term liabilities d.Ratio of liabilities to stockholders' equity Which statement explains the relatively low casuality rate suffered by the United States during World War I? (1 point) A psychologist presents a series of faint lights of varying intensities. Participants report whether they see each light or not. The psychologist is MOST likely trying to determine participants' _____ thresholds. 1) Difference2) Sensory3) Absolute4) Physical Suppose that the government of China is currently fixing the exchange rate between the U.S. Dollar and the Chinese Yuan at a rate of $1 = 6 yuan. Also suppose that at this exchange rate, the people who want to convert dollars to yuan are asking to convert $10 billion per day of dollars into yuan, while the people who are wanting to convert yuan into dollars are asking to convert 36 billion yuan into dollars. What will happen to the size of Chinas official reserves of dollars?a. Increaseb. Decreasec. Remains the same What is the range of the equation ? bone marrow can be found in the many hollow spaces in the blank of this type of bone if ABCD is a rombus with side length 15 mm and if BD=24 mm, then find the length of the other diagonal, AC. Draw a diagram and show work. Recursive definitions for subsets of binary strings.Give a recursive definition for the specified subset of the binary strings. A string r should be in the recursively defined set if and only if r has the property described. The set S is the set of all binary strings that are palindromes. A string is a palindrome if it is equal to its reverse. For example, 0110 and 11011 are both palindromes. Find a pair of numbers that is a member of both y=-3x-27 and y=5+x why silkworm is called queen of fibre? 7x + 2(6x + 9) = 170 A plane travels 240 miles on a bearing of N 10 E and then changes its course to N 67 E and travels another 180 miles. Find the total distance traveled north and the total distance traveled east. (Round each answer to the nearest whole number.) An astronaut is in space with a baseball and a bowling balL The astronaut gives both objects an equal push in the samedirection. Does the baseball have the same inertia as the bowling ball? Why? Does the baseball have the sameacceleration as the bowling ball from the push? Why? If both balls are traveling at the same speed, does the baseball havethe same momentum as the bowling ball? 2 PointsWhich instrument listed below is an example of a chordophone? Unilever discovered that people in emerging economies could not afford to buy standard sizes of toothpaste or shampoo, so Unilever started selling single-serve packets at very low prices. Later, Unilever discovered that the same approach worked in the United States and started also selling them there. This is an example of ________.a. reverse innovation.b. ethnic sensitivity.c. promotional flex.d. unethical marketing practices.e. glocalization. total area of the trapezoidmeters. What is the length of2 The trapezoid below is made up of a square and a triangle. The total area of theis 57.5 square meters. The area of the triangle is 32.5 square meters. What is thea side of the square? A 5 metersB 25 metersC 90 metersD Not enough information is given. 18.[Algebra - Expansion]Expand 3(x + 2) Who wrote the declaration of Independence