One of the most important benefits that wetlands provide is their capacity to maintain and improve water quality. When healthy, wetlands have a rich natural diversity of plants and animals. These can act as filtering systems, removing sediment, nutrients and pollutants from water.
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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.