| 1. | Evolutionary changes help in producing new |
| a. | individuals |
| b. | communities |
| c. | species |
| d. | plants |
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Answer: (c).species
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| 2. | When an early embryo or single egg divides into one or more separate embryos, it gives birth to |
| a. | nonidentical twins |
| b. | identical twins |
| c. | triplets |
| d. | singles |
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Answer: (b).identical twins
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| 3. | Plants which have been infused foreign DNA into their cells are |
| a. | genetic plants |
| b. | unicellular plants |
| c. | multicellular plants |
| d. | transgenic plants |
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Answer: (d).transgenic plants
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| 4. | Virus which is responsible for AIDS is typically known as |
| a. | HBV |
| b. | HIV |
| c. | HCV |
| d. | HAV |
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Answer: (b).HIV
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| 5. | Way of removing pollutants or toxic waste from environment with help of living organisms is called |
| a. | degradation |
| b. | bioremediation |
| c. | integrated disease management |
| d. | disease control |
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Answer: (b).bioremediation
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