An animal knows when to stop drinking by:
A) monitoring CCK levels.
B) how much urine is present in the bladder.
C) detecting how much water is in the stomach.
D) monitoring vasopressin levels.

Question

Quizplus · Accepted Answer

An animal knows when to stop drinking by detecting how much water is in the stomach. This is achieved through stretch receptors in the stomach which signal to the brain when the stomach is full, triggering a feeling of fullness or satiety and causing the animal to stop drinking. CCK and vasopressin levels may be involved in regulating fluid balance in the body, but they do not directly control thirst or the feeling of fullness during drinking. Urine presence in the bladder is not a reliable indicator of hydration status and does not play a role in regulating water intake.

An Animal Knows When to Stop Drinking By