Sweating helps cool down the body. Water is released through glands in the skin, evaporates off the skin and the body is cooled. During exercise, muscles heat up more, so more sweat is needed.

Explanation:

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3 years ago

Cells need oxygen to make energy. Oxygen-rich blood is transported to tissues. When the oxygen is dropped off, it needs to move

ikadub [295]

Answer:

capillaries help the blood containing the things a cell needs

Explanation:

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3 years ago

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What percentage of techniques shown on television show CSI would actually be able to be used in real crime investigation?

ruslelena [56]

Answer:

C. 75 percent

Explanation:

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3 years ago

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