Saturday, April 20, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

General Science Topics (Biology) - WBCS Previous Years Questions P18


Biology 18

86. Cranial nerve in mammals are
(A) 12 pairs
(B) 12
(C) 10 pairs
(D) 10

Correct Answer: [D] 10.
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87. Which part of the ear maintains the balance of our body?
(A) Tympanic membrane
(B) Cochlea
(C) Otolith
(D) Malleus

Correct Answer: [C] Otolith.
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88. Spraying of DDT in crop plants produces pollution of
(A) Air, soil, and water only
(B) Air and water only
(C) Air only
(D) Air and soil only

Correct Answer: [A] Air, soil, and water only.
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89. Oil is obtained from the endosperm of
(A) Mustard
(B) Sesame
(C) Groundnut
(D) Coconut

Correct Answer: [D] Coconut.
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90. Parkinson's disease is characterized by the loss of nerve cells in the
(A) Reticular formation
(B) Cerebral cortex
(C) Cingulate cortex
(D) Substantia nigra

Correct Answer: [B] Cerebral cortex.
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