Biology for IGCSE & O level - Coordination And Response (Section 4 - No. 34)
What happens to the body's blood vessels during vasoconstriction in response to cold?
They dilate to release heat.
They constrict to conserve heat.
They have no change.
They cause sweating.
Explanation
Vasoconstriction narrows blood vessels to reduce heat loss.
Comments (0)
