13
QuizMultiple Choice

Cell Processes — Test

Question 13 • Biology

Which best defines homeostasis?

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

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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