Which of the following statements explain why the process of mitosis is essential to life?
A. Mitosis is the process by which the nucleus of the cell divides and is
responsible for limiting genetic variation.
B. Mitosis is the process by which the nucleus of the cell divides and is
responsible for increasing genetic variation.
C. Mitosis is the process by which the parent cell divides into two
separate cells and is responsible for limiting genetic variation.
D. Mitosis is the process by which the parent cell divides into two
separate cells and is responsible for increasing genetic variation.

A. Mitosis is the process by which the nucleus of the cell divides and is responsible for limiting genetic variation.

Explanation:

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brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.