22
QuizMultiple Choice

Cellular Structure and Function — Test

Question 22 • CMS 2026-2027 Biology CREDIT RECOVERY

Which best defines homeostasis?

Answer
A
maintaining a stable internal environment
B
modifying the external environment
C
controlling what enters and exits the cell
D
movement of materials into the cell

Explanation

Homeostasis is the process of keeping conditions inside an organism relatively stable, even when the outside environment changes. For example, the body regulates temperature and blood sugar levels. Therefore, the best definition is “maintaining a stable internal environment.”

AI-written and checked against the verified answer.

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