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Q. No.Which one of the following groups faces maximum threat of extinction?
1. Gymnosperms
2. Birds
3. Amphibian
4. Mammals
Subtopic: Loss of Biodiversity |
73%
From NCERT
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Species-Area relationship is represented on a log scale as
1. hyperbola
2. rectangular hyperbola
3. linear
4. inverted
1. hyperbola
2. rectangular hyperbola
3. linear
4. inverted
Subtopic: Biodiversity Patterns |
60%
From NCERT
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One of the ex-situ conservation methods for endangered species is
1. Biosphere reserves
2. National parks
3. Cryopreservation
4. Wildlife sanctuaries
1. Biosphere reserves
2. National parks
3. Cryopreservation
4. Wildlife sanctuaries
Subtopic: Ex Situ Conservation of Biodiversity |
78%
From NCERT
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The IUCN Red Data List (2004) in the last 500 years documents the extinction of nearly 784 species including:
1. 330 invertebrates
2. 338 invertebrates
3. 359 invertebrates
4. 362 invertebrates
1. 330 invertebrates
2. 338 invertebrates
3. 359 invertebrates
4. 362 invertebrates
Subtopic: Loss of Biodiversity |
66%
From NCERT
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In a biosphere reserve, core zone, buffer zone and transition zone, respectively represent
| 1. | Limited human activity, no human activity and full human activity without ecological disturbance |
| 2. | Full human activity without ecological disturbance, limited human activity and no human activity |
| 3. | No human activity, limited human activity and full human activity without ecological disturbance |
| 4. | Full human activity without ecological disturbance, no human activity and limited human activity |
Subtopic: In Situ Conservation of Biodiversity |
69%
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Biodiversity
Choose the correct answer from the options given below:
1. A, C and E only
2. A, C and D only
3. C and E only
4. B, C, D and E only
| A. | Decreases from equator to polar regions |
| B. | The area with very few plant and animal species with threatened species are called hotspots |
| C. | Increases from higher altitudes to lower altitudes |
| D. | Depletion of genetic diversity of crop plants is mainly due to introduction of better varities with high yeild, decrease resistance etc. |
| E. | Increases from tropical forests to temperate forests |
1. A, C and E only
2. A, C and D only
3. C and E only
4. B, C, D and E only
Subtopic: Biodiversity Patterns |
68%
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Indian rhinoceros are protected in
1. Gir Forest
2. Kaziranga National Park
3. Bandipur National Park
4. Ranthambore National Park
1. Gir Forest
2. Kaziranga National Park
3. Bandipur National Park
4. Ranthambore National Park
Subtopic: Biodiversity Conservation |
71%
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IUCN stands for:
1. Indian Union for Conservation of Nature
2. International Union for Conservation of Nature
3. Indian Union for Chemical Nomenclature
4. International Union for Conservation of Nutrients
1. Indian Union for Conservation of Nature
2. International Union for Conservation of Nature
3. Indian Union for Chemical Nomenclature
4. International Union for Conservation of Nutrients
Subtopic: Introduction & Types |
91%
From NCERT
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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 |
89%
From NCERT
NEET - 2023
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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 |
Subtopic: Importance of Biodiversity |
62%
NEET - 2023
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