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kondaur [170]
3 years ago
13

An action potential does not re-stimulate the adjacent membrane that was previously depolarized because

Biology
1 answer:
Aliun [14]3 years ago
6 0

Answer:

E. that area of the membrane is in the absolutely refractory period.

Explanation:

Refractory period is a period during which neuron cell cannot be stimulated (depolarized). This is why the action potential can only travel in one direction from the neuron body towards axon.

Refractory period occurs because of the inactivation of voltage-gated sodium channels (while action potential is at its peak) which cannot be open for a certain period of time. and membrane cannot be depolarized.

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What do hypotheses theories and laws have in common
Umnica [9.8K]

Answer:

A theory is a group of hypotheses that prove a law is true.

Explanation:

A theory is an idea based on principles. A hypothesis is an explanation with limited evidence.  Laws are the system of rules indicated for each country.

4 0
2 years ago
Compare the similarities and differences between natural selection and artificial selection
AysviL [449]

Similarities: Natural Selection and Artificial Selection both result in the alteration of the gene pool. It can also change phenotypes of different species'.

Differences: Artificial Selection is when a specific trait is not wanted, and so it is not bred.

For example, humans did not like how yellow peas looked. They liked the healthy looking green better. So, they killed the yellow peas, and bred the green peas with other green pea plants, and right now it is almost completely out of our gene pool.

Natural Selection is when something naturally occurs, such as a natural disaster, famine, plague, invasive species introduction.

For example, if 10 camels lived in a desert, but one of them didn't have as good of a metabolism and stayed full longer, then that one would survive, while the others might not.

3 0
2 years ago
Which of the following is true of metabolism in its entirety in all organisms? aq. Metabolism depends on a constant supply of en
antoniya [11.8K]

Answer:

Metabolism consists of all the energy transformation reactions in an organism. (Ans. B)

Explanation:

Metabolism is defined as the total sum of the chemical reactions which synthesized in every cell of living things and provides energy for formation of new organic materials and vital processes (such as movement, growth, reproduction and development).

In living metabolism, enzyme mediated chemical reactions takes place. Energy which comes from nutrients and solar energy fueling multistep reactions and converting into the molecules which is necessary for maintenance and growth.

7 0
3 years ago
In response to a drop in body temperature, muscle cells are activated and cause the body to shiver. Which cell structures would
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Mitochondria

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