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Q. No."The Evil Quartet" of biodiversity loss includes. which of the following?
| 1. | Over-exploitation; Alien species invasions; Air pollution; Co-extincutions |
| 2. | Habitat loss and fragmentation; over-exploitation; Alien species invasions; Co-extinctions |
| 3. | Habitat loss and fragmentation; Air pollution; Water pollution; Co-extinctions |
| 4. | Over-exploitation; Alien species invasions; Soil pollution; Co-extinctions |
Subtopic: Â Loss of Biodiversity |
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Which of the following statements are correct ?
Choose the correct answer from the options given below
| A. | The Amazon rainforest being cut and cleared for cultivation of soyabeans is an example of habitat loss. |
| B. | Steller's sea cow and passenger pigeon >became extinct due to over-exploitation by humans. |
| C. | The Nile perch introduced into Lake Victoria in East Africa helped in population growth of cichlid fish in the lake. |
| D. | Water hyacinth is an invasive species. |
| E. | When a species becomes extinct, the plant and animal species associated with it are not affected. |
| 1. | B, C and D only |
| 2. | A, B and D only |
| 3. | A, B and E only |
| 4. | C, D and E only |
Subtopic: Â Loss of Biodiversity |
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Exploring molecular, genetic and species-level diversity for products of economic importance is called :
| 1. | Biomagnification | 2. | Biofortification |
| 3. | Bioremediation | 4. | Bioprospecting |
Subtopic: Â Biodiversity Conservation |
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Which of the following is an in situ conservation method?
| 1. | Sacred Groves | 2. | Wildlife Safari Parks |
| 3. | Botanical Gardens | 4. | Seed Banks |
Subtopic: Â In Situ Conservation of Biodiversity |
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Since the origin and diversification of life on Earth, there have been five episodes of extinction of species. How is the sixth extinction which is in progress different from the previous episodes?
| 1. | The current species extinction rates are lower than those in previous episodes. |
| 2. | The present species extinction rates are 100 to 1000 times faster than in the pre-human times. |
| 3. | The present net species extinction rate is zero. |
| 4. | The current species extinction rate is nearly 10 times faster than that in previous episodes. |
Subtopic: Â Loss of Biodiversity |
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Which one of the following is an example of ex-situ conservation?
1. Zoos and botanical gardens
2. Protected areas
3. National Park
4. Wildlife Sanctuary
1. Zoos and botanical gardens
2. Protected areas
3. National Park
4. Wildlife Sanctuary
Subtopic: Â Ex Situ Conservation of Biodiversity |
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NEET - 2025
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Match List-I with List-II:
Choose the options with all correct matches.
1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-II, D-IV
| List-I | List-II | ||
| A. | The Evil Quartet | I. | Cryopreservation |
| B. | Ex-situ | II. | Alien species invasion |
| C. | Lantana camara | III. | Causes of biodiversity losses |
| D. | Dodo | IV. | Extinction |
1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-II, D-IV
Subtopic: Â Loss of Biodiversity |Â Biodiversity Conservation |
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Subtopic: Â Loss of Biodiversity |
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The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called:
| 1. | Biodiversity conservation |
| 2. | Semi-conservative method |
| 3. | Sustainable development |
| 4. | In-situ conservation |
Subtopic: Â Biodiversity Conservation |
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Tropical regions show greatest level of species richness because
Choose the correct answer from the options given below:
| A: | Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. |
| B: | Tropical environments are more seasonal. |
| C: | More solar energy is available in tropics. |
| D: | Constant environments promote niche specialization. |
| E: | Tropical environments are constant and predictable. |
| 1. | A, B and E only |
| 2. | A and B only |
| 3. | A, B and D only |
| 4. | A, C, D and E only |
Subtopic: Â Biodiversity Patterns |
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