Jim does research in antarctica. he frequently endures extremely low temperatures. explain how his skin, muscles, and metabolism
him to maintain his body temperature.

Skin,muscles and metabolism play a significant role in maintaining his body temperature

Explanation:

Role of skin

In cold environment the blood vessels of the skin constrict to prevent the loss or liberation of heat from his(jim) body.

Role of muscles

The one of principle function of muscle is to store glycogen.The stored glycogen of jim"s muscle  undergo glycogenolysis to generate heat inside his body.

Role of metabolism

In cold environment the rate of aerobic respiration and other catabolic reactions such as beta oxidation of fatty acid occur to generate energy in form of heat in his body.

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction