Question

homeostasis is _______.
choose one option
a the process by which nutrients are absorbed in the villi of the small intestine
b the tendency of the body to maintain inner balance despite changes in external conditions
c the exchange of oxygen and carbon dioxide in the lungs
d the filtering of blood in the kidneys that produces urine

Explanation:

Homeostasis refers to the body's regulatory mechanism to keep internal conditions stable (e.g., temperature, pH) regardless of external environmental changes. Option A describes nutrient absorption, C describes gas exchange, and D describes urine formation—all specific processes, not the definition of homeostasis.

Answer:

B. the tendency of the body to maintain inner balance despite changes in external conditions