Answer:
aging is a gradual, continuous process of natural change that begins in early adulthood. during early middle age, many bodily functions begin to gradually decline. people do not become old or elderly at any specific age. traditionally, age 65 has been designated as the beginning of old age.
Explanation:
Answer:
The answer is e
Explanation:
Oxygen moves due to diffusion, and the diffusion of oxygen occurs from higher concentration to lower concentration that is from the blood into the tissues
The nuclear reaction could be controlled and maintained