Multiple Choice
Humans may conserve or generate heat in cold weather by:
A) Blood vessels near the surface of the skin constricting
B) Blood vessels near the surface of the skin dilating and shivering
C) Shivering
D) Blood vessels near the surface of the skin dilating
E) Blood vessels near the surface of the skin constricting and shivering
Correct Answer:

Verified
Correct Answer:
Verified
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