I might be wrong, but I think the answer to this question is D.
Homeostasis is when your body acts to help your body stay regulated. An example of this is sweating.
Hope this helps!
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Cellular respiration is the process by which organic sugars are broken down to produce energy. It plays a vital role in the carbon cycle because it releases carbon dioxide into the atmosphere.
A gland that makes substances such as sweat, tears, saliva, milk, and digestive juices, and releases them through a duct or opening to a body surface is known as exocrine glands.