| 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
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| 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
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| 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
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| 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
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| 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
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