In response to low blood ________, the kidneys secrete __________.

Elderly individuals generally have a _______ percentage of body fluid and are therefore _______ prone to fluid imbalances.

Edema is an example of

The renal threshold of a substance refers to

What inner ear structure detects acceleration and deceleration movements of the head?

Distention of the stomach causes thirst to

The plasma of our blood constitutes ______ than half of the fluid in our body; plasma is part of the _____________ fluid.

What molecules help concentrate odorants at the olfactory receptor cells?

A structure that is said to resemble a pearl necklace is a

Gustatory receptors are classified as mechanoreceptors because food molecules must be dissolved in saliva before they can be tasted.