- 1(current)
Q. No.Year-to-year variation shown by areas with more species is ................... with respect to areas with less species.
| 1. | less | 2. | more |
| 3. | same | 4. | absent |
Subtopic: Â Importance of Biodiversity |
 69%
Level 2: 60%+
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Which Indian plant is the source of antihypertensive drug reserpine?
1. Datura
2. Rauwolfia
3. Atropa
4. Papaver
1. Datura
2. Rauwolfia
3. Atropa
4. Papaver
Subtopic: Â Importance of Biodiversity |
 90%
Level 1: 80%+
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Tilman in his experiments found that:
| 1. | Plots with more species showed less year to year variation in total biomass. |
| 2. | Plots with more species showed more year to year variation in total biomass. |
| 3. | Plots with less species showed less year to year variation in total biomass. |
| 4. | There is no relation between species diversity and biomass production. |
Subtopic: Â Importance of Biodiversity |
 85%
Level 1: 80%+
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Subtopic: Â Importance of Biodiversity |
Level 4: Below 35%
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