9
QuizMultiple Choice

The Musculoskeletal and Integumentary Systems

Question 9 • Summer School LA-Biology CR

The hair on Jamal’s arms is standing straight up.What most likely explains why his hair is behaving this way?

Answer
A
He is in a cold area.
B
He is sweating.
C
He is in danger of bacteria.
D
He is receiving information for touch.

Explanation

Hair standing up is commonly a response to cold. Tiny muscles attached to hair follicles contract, making the hairs rise and helping trap a layer of warm air near the skin. Sweating helps cool the body, while bacteria and touch information do not explain this response. The best choice is A, he is in a cold area.

AI-written and checked against the verified answer.

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