8
lesson pretestMultiple Choice

Pretest

Question 8 • Biology

Which of these best describes homeostasis?

Answer
A
the state of maintaining a stable internal environment when the external conditions are constant
B
the state of maintaining a stable internal environment despite changing external conditions
C
the state of maintaining a stable internal environment as a result of the body producing electrical impulses
D
the state of maintaining a stable internal environment as a result of the body producing chemical signals

Explanation

Homeostasis is the regulation of an organism’s internal conditions so they remain stable even when the surroundings change. For example, the body helps keep its temperature steady despite changes in outside temperature. Therefore, the best description is “maintaining a stable internal environment despite changing external conditions.”

AI-written and checked against the verified answer.

Previous
Next