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Which of the following is an example of ...

Which of the following is an example of negative feedback loop in humans

A

Secretion of tears after falling of stand particles in to the eye.

B

Salivation of mouth at the sight of delicious food

C

Secretion of sweat glands and and constriction of skin blood vessels when it is too hot.

D

Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold

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The correct Answer is:
D
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TRUEMAN BIOLOGY-NEURAL CONTROL AND COORDINATION-MCQ
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