Which one of the following is an example of negative feedback loop in humans
(A) constriction of skin blood vessels and contraction of skeletal muscle when it is too cold
(B) secretion of tears after falling of sand particles into eye
(C) salivation of mouth at the sight of delicious food
(D) secretion of sweat gland and constriction of skin blood vessels when it is too hot
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Answer:
hey mate here is the needed answer .
..........A) constriction of skin blood vessels and contractions of skeletal muscles when it is too cold ............
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The construction of the skin blood vessels and contraction of the skeletal muscles when it is too cold is an example of negative feedback loop which takes place in human beings.
Option A
Explanation:
- when the temperature of the environment Falls there is instruction and withdrawal of the blood vessels.
- This is done to prevent loss of heat from the blood vessels to the surroundings and helps to maintain constant body temperature.
- In addition to this there is contraction of the skeletal muscles when it is too cold and helps in generation of kinetic energy to provide heat to the body.
To know more about negative feedback loop in human beings,
What is feedback mechanisms in human body - Brainly.in
https://brainly.in/question/8087479
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