Harold, who is 55 years old, did not realize how much his physical appearance had changed until he saw a picture of himself taken 20 years ago. Harold's gradual change in physical appearance was due to _____.
a) senescence
b) homeostasis
c) organ reserve
d) allostasis
Answer: a) senescene
Explanation:
Senescene: Senescene is a biological process. After reaching certain age ( generally after 40 years) , body parts of human beings gradually lose their capacity to work and lose their glory. This biological process is called Senescene. Because of this biological process, Physical appearance of a person will be changed according to age.
In the above given case, Harold, who is 55 years old, realized that his physical appearance has changed after seeing a picture of himself taken 20 years ago. That change of physical appearance occurred in Harold because of Senescene. That's why Option A is the correct answer.
Harold, who is 55 years old, did not realize how much his physical appearance had changed...
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