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tangare [24]
3 years ago
6

What is the Gradual change in a population that occurs due to natural selection

Biology
1 answer:
aliya0001 [1]3 years ago
8 0

Answer and Explanation:

Darwin observed that members of a species in a population especially those  that reproduce sexually show certain variations. Some of these variations are caused by genes hence can be inherited. Some of the inherited characteristics make the individuals possessing them better suited to the prevailing environmental conditions. This enables such individuals to stand a better chance to survive in the struggle for existence. Accumulation of this gradual changes in a populations due to natural selection leads to formation of new species that are better suited to the environment.

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Jill stepped on a tack. Which part of the central nervous system caused her foot to move off the tack quickly in a reflex respon
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Answer: Spinal cord.

Explanation:

The spinal cord of the central nervous system helps to move off quickly as a part of the reflex response. Jill stepped on a tack and suddenly he realizes that he should quickly move his legs out of the tack.

The pain is not stimulated until the signals reaches from the receptor to the brain. The formation of the reflex arc ensures that the amount of potential tissue damaged is less.

It forces the body to move quickly from the place that is causing damage.Example: Moving the leg up involuntarily when stepped on pin.

This occurs because the sensory neurons connects to the motor neurons within the spinal cord.This leads to the contraction of bones and muscles.

Hence, the correct option is spinal cord.

4 0
3 years ago
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Zigmanuir [339]

Answer:

option B

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3 years ago
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stepan [7]

Answer:

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Allushta [10]

Hello there

the answer to your question is

Be involved in the rapid uptake of compounds from the cell's environment

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Abnormal cells crowd out cells and steal nutrients.
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