NEET Biology Excretory Products and their Elimination Question Bank Self Evaluation Test - Excretory Products and their Elimination

  • question_answer
                                                                  On a cold day, blood vessels in the skin:

    A) Dilate, allowing blood to keep the skin warm.

    B) Constrict, forcing blood to flow through vessels in the skin.

    C) Constrict, reducing heat loss from blood at the surface.

    D) Dilate, causing blood to pass through the cold skin more quickly.

    Correct Answer: C

    Solution :

    [c] Reducing blood flow to the body surface will reduce heat loss.


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