The ability of body organs and systems to put forth extra effort in times of stress is called
A) homeostasis.
B) reserve capacity.
C) senescence.
D) None of these; no such ability exists.

Question

Quizplus · Accepted Answer

Reserve capacity refers to the ability of body organs and systems to put forth extra effort during times of stress, such as during exercise or illness. Homeostasis refers to the body's ability to maintain a stable internal environment, and senescence refers to the natural aging process of the body. Therefore, B is the correct choice. D is incorrect because reserve capacity does exist in the body.

The Ability of Body Organs and Systems to Put Forth