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Q. No.The most serious consequence of a decrease in global biodiversity would be the
1.
increase in global warming and thinning of the ozone layer
2.
potential loss of ecosystem services on which people depend
3.
increase in the abundance and diversity of edge-adapted species
4.
loss of source of genetic diversity to preserve endangered species
Subtopic: Loss of Biodiversity |
54%
From NCERT
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In the following questions a statement of assertion (A) is followed by a statement of reason (R).
| Assertion(A): | Sacred forests are refuge of rare, endangered and endemic taxa. |
| Reason(R): | The land of sacred forests is fertile. |
| 1. | Both (A) & (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) & (R) are true but (R) is not the correct explanation of (A) |
| 3. | (A) is true statement but (R) is false. |
| 4. | Both (A) and (R) are false statements. |
Subtopic: Ex Situ Conservation of Biodiversity |
62%
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The reintroduction of Gangetic Gharial in the rivers of Uttar Pradesh, Madhya Pradesh and Rajasthan, where it had become extinct, is an example of
1. In situ conservation
2. Ex situ conservation
3. In vivo conservation
4. Ex vivo conservation
1. In situ conservation
2. Ex situ conservation
3. In vivo conservation
4. Ex vivo conservation
Subtopic: Ex Situ Conservation of Biodiversity |
58%
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
| Statements I: | Species confined to a particular region and are not found anywhere else are called endemic species |
| Statement II: | Keystone species are usually abundant in an ecosystem |
1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic: Biodiversity Conservation |
69%
From NCERT
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'The Evil Quartet' is responsible for decline in biodiversity are
A. Habitat loss
B. Over exploitation
C. Ex-situ conservation
D. Co-extinction
E- Out breeding
Choose the correct answer from the option given below:
1. A & B only
2. A, B & D only
3. A & D only
4. B, D & E only
A. Habitat loss
B. Over exploitation
C. Ex-situ conservation
D. Co-extinction
E- Out breeding
Choose the correct answer from the option given below:
1. A & B only
2. A, B & D only
3. A & D only
4. B, D & E only
Subtopic: Loss of Biodiversity |
83%
From NCERT
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Subtopic: Magnitude of Biodiversity | Biodiversity Patterns |
77%
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Genetic diversity
A. helps in the formation of polymorph
B. helps in speciation
C. is diversity of habitat
D. is diversity due to replacement of species within the habitat
E. is useful in adaptation to changes in environment
Choose the correct answer from the options given below
1. A, B and E only
2. B, C and D only
3. C, D and E only
4. A, B and D only
A. helps in the formation of polymorph
B. helps in speciation
C. is diversity of habitat
D. is diversity due to replacement of species within the habitat
E. is useful in adaptation to changes in environment
Choose the correct answer from the options given below
1. A, B and E only
2. B, C and D only
3. C, D and E only
4. A, B and D only
Subtopic: Introduction & Types |
51%
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Select the incorrect statement(s) about biodiversity
Choose the correct answer from the options given below:
1. A, D only
2. B, C, D only
3. B, E only
4. D, E only
| A. | It increases from high to low latitudes |
| B. | Increased biodiversity contributes to higher productivity |
| C. | Within a region, species richness increases with increasing explored area |
| D. | Loss of biodiversity in a region leads to decreased variability in ecosystem processes |
| E. | Tropical environments promote niche specialization and lead to decrease in biodiversity |
1. A, D only
2. B, C, D only
3. B, E only
4. D, E only
Subtopic: Biodiversity Patterns |
58%
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Which of the following is not a method for ex-situ conservation?
1. Botanical garden
2. Wildlife safari parks
3. National parks
4. Zoological parks
1. Botanical garden
2. Wildlife safari parks
3. National parks
4. Zoological parks
Subtopic: Ex Situ Conservation of Biodiversity |
86%
From NCERT
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Give the correct descending order of organisms with reference to their estimated number found in Amazon forest.
Choose the correct answer from the options given below:
| (a) | Plants | (b) | Invertebrates |
| (c) | Fishes | (d) | Mammals |
| (e) | Birds |
| 1. | (a) > (b) > (e) > (d) > (c) | 2. | (a) > (c) > (d) > (b) > (e) |
| 3. | (b) > (a) > (e) > (d) > (c) | 4. | (b) > (a) > (c) > (e) > (d) |
Subtopic: Biodiversity Patterns |
67%
From NCERT
NEET - 2022
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