Which of the letters represents an interneuron? A B C D

Answers

Answer 1

Answer: Interneurons are those neurons that transduces the vague information received from the afferent neurons and sends a response to the efferent neurons.

Neurons are the basic unit of the nervous system. Hence, these nerve cells are the cells that transmits electrical impulses that causes a person to respond, move and irritable (respond to stimuli).

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You are studying a mysterious organism. The organism has tentacles and is attached to the sea floor. It survives by stinging food and Tatching plankton with its tentacles. What type of invertebrate is this? annelid or arthropod or echinoderm cnidarian or poriferanPLEASE HELP MEEEEEE
Where are gametes located?

What is common between aerobic and anaerobic respiration? A. Krebs cycle
B. Electron transport chain
C. Glycolysis

Answers

C. Glycolysis

Krebs cycle and ETC only occur during aerobic respiration

The growth of most plants is limited by the amount of nitrogen available. Which of the following effects does low nitrogen availability most likely have on the carbon cycle?A More carbon dioxide is taken up by plants
B Carbon dioxide is trapped in the soil around plants
C Less carbon dioxide is removed from the atmosphere.
D Carbon dioxide is converted to carbonates by bacteria.

Answers

C. Less carbon dioxide is removed from the atmosphere.

What would happen if human sperm and eggs were produced by mitosis ?

Answers

Your chromosome number in gametes would double from 46 to 92

Final answer:

If human sperm and eggs were produced by mitosis instead of meiosis, they would be diploid cells, possibly resulting in a zygote with an excess of chromosomes. This imbalance could lead to nonviable offspring and developmental complications, as necessary components for early development are only present in the egg cell.

Explanation:

Currently, human sperm and eggs are produced by the process of

meiosis

, which results in

haploid cells

that contain half the number of chromosomes as the parent cell. If, hypothetically, sperm and eggs were produced by mitosis, they would be

diploid cells

with a full set of chromosomes similar to normal body cells. With such a change, sexual reproduction, as we understand it, could not occur, as the fertilization event would result in a zygote with four sets of chromosomes, creating a significant imbalance in genetic material. This could potentially lead to numerous complications and abnormalities in the offspring, likely making them nonviable. Additionally, critical components necessary for early development are present in the cytoplasm of the egg cell, without which, no subsequent development would occur. In conclusion, the production of sperm and egg cells via mitosis instead of meiosis would fundamentally alter human reproduction and could potentially lead to severe problems in offspring development.

Learn more about Meiosis and Mitosis here:

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A population of bacteria is treated with an antibiotic. It is estimated that 5,000 live bacteria existed in the sample before treatment. After each day of treatment, 40% of the sample remains alive. Which best describes the graph of the function that represents the number of live bacteria after x days of treatment?A. f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0

B. f(x) = 5000(0.6)x, with a vertical asymptote of x = 0

C. f(x) = 5000(1.4)x, with a horizontal asymptote of y = 0

D. f(x) = 5000(1.6)x, with a vertical asymptote of x = 0

Answers

"f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0" is the one among the following choices given in the question that best describes the graph of the function that represents the number of live bacteria after x days of treatment. The correct option among all the options that are given in the question is the first option or option "A".

Answer:

The correct option is A.

Step by step explanation:

The exponential function is defined as

$f(x)=ab^x$

Where, a is initial value and b is growth factor or decay factor.

The initial population of bacteria is 5000.

After each day of treatment, 40% of the sample remains alive. It means the growth factor or decay factor is

$(40)/(100)=0.4$

Therefore the required function is

$f(x)=5000(0.4)^x$

The horizontal asymptote is y=0 because

$f(x)\rightarrow 0\text{ as }x\rightarrow\infty$

Therefore option A is correct.

A researcher wants to test how diets A and B affect the weight loss of rabbits. She has 20 rabbits to use, but all of the rabbits are different sizes, which might affect how much weight they lose. The researcher decides to group the four smallest rabbits in one group, the next four smallest rabbits in another group, etc., until the final group has the four largest rabbits. Then, from each group she randomly selects two rabbits to have diet A, and the remaining rabbits in the groups have diet B.Select all that apply:
A. This is an example of a block design.
B. This is an example of a completely randomized experiment
C. This is an example of a matched pairs experiment.
D. The treatments are diets A and B.
E. The treatment is how much weight a rabbit loses.
F. The experimental units are the 20 rabbits.
G. The experimental units are diets A and B

Answers

Answer:

A. This is an example of a block design.

D. The treatments are diets A and B.

F. The experimental units are the 20 rabbits.

Explanation:

The randomized block designs are used in experiment when there is only one variable of prime importance but along with it there are several nuisance factors. As in this case, the prime variable is the impact on weight of rabbits when they consume one the given diets. However, several nuisance factors are unequal weights of the rabbit, different class of rabbits, eating habits of rabbit, time of feeding etc.

Treatment in an experiment is the independent variable that is varied to measure its impact on the subjects of the experiment.

Here these independent variables are diet type A and B and the subject is the group of 20 rabbits. Subjects are also referred as experimental unit i.e on which the experiment is being conducted

Hence, option A, D and F are correct

What would happen if a mutation created a new allele that decreased fitness?

Answers

Fitness describes a reproductive success of an individual. For example, there are green and yellow beetles in a population. If a color affects the reproductive success, for example, green beetles will have more offspring that the brown ones because of their color. So, green beetles have higher fitness. And the beetles with decreased fitness will have less offspring.

So, if a mutation creates a new allele which decreases the fitness, the altered allele will not be inherited in such a ratio as the unaltered allele will.

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Some animals, but not humans, have an organ called a gizzard located near the top of their digestive tract. This organ is small and can contain small rocks. It also has thick, muscular walls. Based on this physical description, which of the following is most likely to be the function of this organ?

A sentence using hydrotropism

List reasons you would or would not be concerned about eating genetically modified food.

Alike between pathogens and antibodies