Question

is a state of equilibrium, in which biological conditions (such as body temperature) are maintained at optimal levels.
a. resting potential
b. synergy
c. reuptake
d. homeostasis

Explanation:

Homeostasis is the biological state of equilibrium where internal conditions like body - temperature are kept at optimal levels. Resting potential is related to electrical charge across a cell membrane, synergy refers to combined effects being greater than individual ones, and reuptake is related to neurotransmitter processes.

Answer:

D. homeostasis