brennan1008 brennan1008

06-02-2022
Biology

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the muscles contract to raise the hair shafts to use the body hair to trap heat

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cyi7509 cyi7509

06-02-2022

Answer:

The arrector pili muscles contract (piloerection) and lift the hair follicles upright. This makes the hairs stand on end, which acts as an insulating layer, trapping heat.

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