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Q. No.The name of Alexander von Humboldt is associated with:
1. the concept of competitive release
2. Rivet popper hypothesis
3. the concept of Species area relationship
4. Ecological sanitation
Subtopic: Biodiversity Patterns |
92%
Level 1: 80%+
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A stable community in an ecosystem:
| I: | should show a considerable increase in productivity every year |
| II: | must be either resistant or resilient to occasional man-made and natural disturbances |
| III: | must be resistant to invasions by alien species |
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
Subtopic: Importance of Biodiversity |
Level 3: 35%-60%
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The Earth Summit was held in:
| 1. | Montreal, 1987 | 2. | Kyoto, 1997 |
| 3. | Rio de Janeiro, 1992 | 4. | Johannesburg, 2002 |
Subtopic: Ex Situ Conservation of Biodiversity |
91%
Level 1: 80%+
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The historic Convention on Biological Diversity, 'The Earth Summit' was held in Rio de Janeiro in the year :
| 1. | 2002 | 2. | 1985 |
| 3. | 1992 | 4. | 1986 |
Subtopic: Ex Situ Conservation of Biodiversity |
82%
Level 1: 80%+
NEET - 2023
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?
1. Co-extinctions
2. Habitat loss and fragmentation
3. Over exploitation for economic gain
4. Alien species invasions
1. Co-extinctions
2. Habitat loss and fragmentation
3. Over exploitation for economic gain
4. Alien species invasions
Subtopic: Loss of Biodiversity |
84%
Level 1: 80%+
NEET - 2023
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NEET 2026 - Target Batch - Vital
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In 'rivet popper hypothesis', Paul Ehrlich compared the rivets in an airplane to
| 1. | species within a genus | 2. | genetic diversity |
| 3. | ecosystem | 4. | genera within a family |
Subtopic: Importance of Biodiversity |
67%
Level 2: 60%+
NEET - 2023
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
The species of plants that plays a vital role in controlling the relative abundance of other species in a community is called _______.
1. alien species
2. endemic species
3. exotic species
4. keystone species
1. alien species
2. endemic species
3. exotic species
4. keystone species
Subtopic: Importance of Biodiversity |
64%
Level 2: 60%+
NEET - 2023
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NEET 2026 - Target Batch - Vital
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Which of the following is/are cause(s) of biodiversity losses?
1. Over-exploitation, habitat loss and fragmentation
2. Climate change only
3. Over-exploitation only
4. Habitat loss and fragmentation only
1. Over-exploitation, habitat loss and fragmentation
2. Climate change only
3. Over-exploitation only
4. Habitat loss and fragmentation only
Subtopic: Loss of Biodiversity |
91%
Level 1: 80%+
NEET - 2023
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NEET 2026 - Target Batch - Vital
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What will be true for proportionate number of species representing global biodiversity?
| 1. | The number of lichens is much more than the number of algae |
| 2. | The number of mosses is much less than the number of ferns and allies |
| 3. | The number of angiosperms is equal to the number of gymnosperms |
| 4. | The number of fungi is much more than the number of algae, ferns and allies, mosses and lichens put together |
Subtopic: Magnitude of Biodiversity |
89%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | More than 25% of the drugs currently sold in the market worldwide are derived from plants. |
| Statement II: | Amazon forest is estimated to produce, through photosynthesis 5 % of the total oxygen in the earth’s atmosphere. |
| 1. | Statement I is incorrect; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Biodiversity Conservation |
87%
Level 1: 80%+
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