Answer:
D
Explanation:
This is because the atmosphere is refreshable and makes breathing so conducive.
When a human dies, his corpses gets decomposed by decomposing bacteria. What's produced by the decomposing bacteria is the "fertilizer" for plants.
Answer:
When a species goes into hibernation, the heart rate drops drastically, and the body temperature does as well, in order to conserve energy. The body becomes induced into a comatose state by releasing chemicals from the brain to body to go into sleep mode.
Explanation:
Hibernation usually occurs during the winter.
