Friday, April 19, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

Biology MCQ For WBCS Prelims and Mains P3


Biology 03

11. In plants, the receptor for detecting photoperiod is
(A) Protein molecule
(B) Gradient of K+
(C) Sensory cell
(D) Sensory organelles.

Correct Answer: [A] Protein molecule.
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12. Which one of the following is a protozoan?
(A) Yeast
(B) Variola
(C) Pea mosaic
(D) Entamoeba Hystolytica.

Correct Answer: [D] Entamoeba Hystolytica..
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13. Which one is not a protozoan?
(A) Amoeba
(B) Paramoec
(C) Hydra
(D) Euglena.

Correct Answer: [C] Hydra.
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14. The smallest size of a cell which can be seen with the unaided eye is
(A) 100 microns
(B) 1000 microns
(C) One micron
(D) 10 microns.

Correct Answer: [A] 100 microns.
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15. According to Darwin, the unit of Natural Selection is
(A) Gene
(B) Species
(C) Individual
(D) Family.

Correct Answer: [B] Species.
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