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Biology 12 Chapter 15 Homeostasis - 22
1.
Which one is endotherms?
a) Invertebrates.
b) Fishes.
c) Amphibians.
d) Mammals.
2.
Choose the correct relation?
a) Poikilotherms-Ectotherms.
b) Poikilotherms-Endotherms.
c) Homeotherms-Poikilotherms.
d) Homeotherms-Ectotherms.
3.
Choose the correct relation?
a) Homeotherms-Poikilotherms.
b) Homeotherms-Ectotherms.
c) Poikilotherms-Endotherms.
d) Homeotherms-Endotherms.
4.
Where is thermoregulatory centre in human body located?
a) Thalamus.
b) Hypothalamus.
c) Thyroid gland.
d) Kidneys.
5.
On the basis of ability of animals to maintain constant body temperature, into how many classes they can be classified?
a) 7.
b) 3.
c) 4.
d) 2.
6.
On the basis of source of body’s heat, into how many classes animals can be classified?
a) 2.
b) 3.
c) 4.
d) 7.
7.
How many physiological responses to heat are there?
a) Two.
b) Several.
c) Four.
d) Three.
8.
What is the expansion of blood capillaries called which lie just below the epidermis of the skin?
a) Shivering.
b) Vasodilation.
c) Sweating.
d) Piloerection.
9.
Which glands spread sweat over the skin?
a) Sweat glands.
b) Thyroid glands.
c) Parathyroid glands.
d) Skin glands.
10.
What is the spasmodic contraction of the muscles called?
a) Shivering.
b) Vasoconstriction.
c) Vasodilation.
d) Piloerection.
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