- 1(current)
Q. No.Biodiversity loss is now one of the world’s most pressing crisis. The primary reason for this is that:
| 1. | we cannot do anything about it |
| 2. | we are not responsible for this loss |
| 3. | we still do not know its entire extent |
| 4. | it is only affecting the developing countries |
Subtopic: Importance of Biodiversity | Loss of Biodiversity |
73%
Level 2: 60%+
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On a logarithmic scale, the species-area relationship turns out to be a:
| 1. | Straight line | 2. | Rectangular hyperbola |
| 3. | Bell shaped | 4. | U shaped |
Subtopic: Importance of Biodiversity |
68%
Level 2: 60%+
Hints
‘Increased biodiversity allows species to interact with each other in a useful manner, which makes the ecosystem more stable overall’. This statement can be attributed to:
1. David Tilman
2. Paul Ehrlich
3. Robert Constanza
4. Tansley
1. David Tilman
2. Paul Ehrlich
3. Robert Constanza
4. Tansley
Subtopic: Importance of Biodiversity |
83%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | Communities with more species generally tend to be more stable than those with less species. |
| Statement II: | Within a region, species richness increases with increasing explored area, but only up to a limit. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Biodiversity Patterns | Importance of Biodiversity |
94%
Level 1: 80%+
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A stable biological community:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | should not show too much variation in productivity from year to year |
| II: | must be either resistant or resilient to occasional disturbances (natural or man-made) |
| III: | must also be resistant to invasions by alien species |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Importance of Biodiversity |
86%
Level 1: 80%+
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Subtopic: Importance of Biodiversity |
82%
Level 1: 80%+
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Biodiversity should be conserved as it plays a major role in many ecosystem services that nature provides. Such an argument is called:
| 1. | broadly utilitarian | 2. | narrowly utilitarian |
| 3. | ethical | 4. | moral |
Subtopic: Importance of Biodiversity |
71%
Level 2: 60%+
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What type of argument for need to conserve biodiversity am I making when I say that we all must do our best to protect the biodiversity on the Earth as the nature provides invaluable services and intangible benefits like aesthetic pleasures of being in nature?
| 1. | Narrowly utilitarian | 2. | Broadly utilitarian |
| 3. | Ethical | 4. | Useless |
Subtopic: Importance of Biodiversity | Loss of Biodiversity |
69%
Level 2: 60%+
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The search for previously unknown compounds in organisms that have never been used in traditional medicine is known as:
| 1. | Biopiracy | 2. | Bioprospecting |
| 3. | Molecular pharming | 4. | Bioremediation |
Subtopic: Importance of Biodiversity | In Situ Conservation of Biodiversity | Ex Situ Conservation of Biodiversity |
74%
Level 2: 60%+
Hints
What percentage of total oxygen in the earth’s atmosphere is produced by Amazon rainforest through photosynthesis?
| 1. | 50 | 2. | 40 |
| 3. | 30 | 4. | 20 |
Subtopic: Importance of Biodiversity |
76%
Level 2: 60%+
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- 1(current)
Q. No.
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