| 41. | In ecosystem, Secondary consumers are |
| a. | plants |
| b. | herbivores |
| c. | carnivores |
| d. | omnivores |
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Answer: (c).carnivores
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| 42. | Interaction of living things and non-living things is known as |
| a. | ecological niche |
| b. | ecological community |
| c. | ecosystem |
| d. | ecology |
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Answer: (c).ecosystem
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| 43. | An ecosystem does not need |
| a. | solar energy |
| b. | materials from the outside |
| c. | chemical energy |
| d. | food energy |
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Answer: (a).solar energy
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| 44. | Interaction and interdependence of plants and animals in a certain place is known as |
| a. | ecological niche |
| b. | ecological community |
| c. | ecological habitat |
| d. | ecological niche and community |
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Answer: (d).ecological niche and community
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| 45. | Fungi and bacteria act as |
| a. | primary consumers |
| b. | secondary consumers |
| c. | decomposers |
| d. | detritivores |
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Answer: (c).decomposers
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