Biology MCQs Class 12 Quiz 3 download pdf Homeostasis

MCQs Biology F.Sc. Part 2 (2nd Year)
Chapter No.15
HomeoStasis

111. Regulation of body temperature in homiotherms during cold environmental temperature involve:

(A) Vaso-consriction
(B) Erection of hairs
(C) Increase in sub-cutaneous fat
(D) All

Answer:
(D) All




112. Displace the set point of hypothalamus above the normal point of 37°C:

(A) Pyrenins
B) Pyridoxine
(C) Pyrogens
(D) All

Answer:
(C) Pyrogens

113. An animal when taken into hot area looses heat by sweating and when to cold area increases muscular activity to produce more heat. The animal is:

(A) flomeothermie
(B) Poikilothormic
(C) Ectothermic
(D) None of these

Answer:
flomeothermie

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Biology Class 10th MCQs Chapter No.2

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