E-PolyLearning

36. Function of roots is to
a. reproduce
b. support
c. store food
d. anchor the plant
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Answer: (d).anchor the plant

37. Elements which occur in a living organism are called
a. Bioelements
b. chemical elements
c. super elements
d. Natural elements
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Answer: (a).Bioelements

38. Pests are destroyed by using living organism is attributed to process of
a. biological control
b. hazards control
c. disease control
d. chemical control
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Answer: (a).biological control

39. Diseases like polio, whooping cough, measles, mumps etc. can be avoided by
a. medicine
b. Vaccination
c. precautions
d. Avoiding contact
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Answer: (b).Vaccination

40. Killer of bacteria of a sick person is an
a. antivirus
b. antifungal
c. antibody
d. antibacterial
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Answer: (d).antibacterial