Endorphins give a species an evolutionary advantage because they:
A) eliminate pain when the painful stimulation is prolonged.
B) make pain bearable and so the pain doesn't interfere with action.
C) regulate a "biological clock" in the brain.
D) increase the crying of infants, which brings parents closer.

Question

Quizplus · Accepted Answer

Endorphins make pain bearable, which allows individuals to continue their actions despite the presence of pain. This can give a species an evolutionary advantage by allowing them to survive and thrive in their environment. Eliminating pain entirely (A) may not be necessary for this advantage, and regulating a biological clock (C) and increasing crying in infants (D) are not directly related to pain management and therefore do not provide as clear of an evolutionary advantage.

Endorphins Give a Species an Evolutionary Advantage Because They