Friday, April 19, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

Biology MCQs For WBCS and Other Govt Exams P13


121. The ecological niche is the
(A) An abiotic component in an ecosystem.
(B) A biotic component in an ecosystem.
(C) Both A and B
(D) None of the above
Correct Answer: [B] A biotic component in an ecosystem..


122. Which disease is caused by fungus?
(A) Dermatitis
(B) Cholera
(C) Polio
(D) Malaria
Correct Answer: [A] Dermatitis.


123. Which one of the following plants keeps its stomata open during the night and closed during the day?
(A) Sunflower
(B) Fern
(C) Water Lily
(D) Cactus
Correct Answer: [D] Cactus.


124. The following animal is called a friend of farmer :
(A) Rhizobium
(B) Honey-bee
(C) Goat
(D) Earthworm
Correct Answer: [D] Earthworm.


125. The biochemical processes taking place in the body is known as
(A) Metabolism
(B) None of the above
(C) Anabolism
(D) Catabolism
Correct Answer: [A] Metabolism.


126. The genetic information is carried by
(A) Nucleic acids
(B) Carbohydrate
(C) Fatty acids
(D) Protein
Correct Answer: [A] Nucleic acids.


127. Proteins are detected by
(A) DNP test
(B) Benedict's test
(C) Molisch's test
(D) Biuret test
Correct Answer: [D] Biuret test.


128. Which one of the following is an endemic plant?
(A) Phoenix Paludosa
(B) Kydia Calycina
(C) Quercus Incana
(D) Eleusine Coracana
Correct Answer: [D] Eleusine Coracana.


129. Which of the following is the hardest substance in the human body?
(A) Bone
(B) Nail
(C) Dentine
(D) Enamel
Correct Answer: [D] Enamel.


130. Edible portion of coconut is the
(A) Cotyledon
(B) Embryo
(C) Fruit wall
(D) Endosperm
Correct Answer: [D] Endosperm.



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