7
QuizMultiple Choice

Cell Structure and Function — Test

Question 7 • Biology

Which best defines homeostasis?

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