Answer: Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products.
Explanation:
Due to the cactus storing water within itself, the spines act as a protective bodyguard against the nerds trying to take the water.
The answer to this question is watershed.
These reactions must absorb the energy from their surroundings. Can be cold or heat.
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