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Q. No.Species Area relationship is described by the following equation.
log S = log C + Z log A
where Z is:
1. Area
2. Species richness
3. Slope of the line
4. Y-intercept
log S = log C + Z log A
where Z is:
1. Area
2. Species richness
3. Slope of the line
4. Y-intercept
Subtopic: Biodiversity Patterns |
77%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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Endemism refers to:
1. Species richness
2. Species evenness
3. Species confined to that region
4. Species diversity
Subtopic: Importance of Biodiversity | Loss of Biodiversity |
79%
From NCERT
NEET - 2022
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Extinction is a natural phenomenon. It is estimated that 99% of all species that ever lived are now extinct. Why then do we say that we are now experiencing an extinction (loss of biodiversity) crisis?
1. Humans are ethically responsible for protecting endangered species.
2. Scientists have finally identified most of the species on Earth and are thcurreus able to quantify the number of species becoming extinct.
3. The current rate of extinction is high and human activities threaten biodiversity at all levels.
4. Humans have greater medical needs than at any other time in history, and many potential medicinal compounds are being lost as plant species become extinct.
1. Humans are ethically responsible for protecting endangered species.
2. Scientists have finally identified most of the species on Earth and are thcurreus able to quantify the number of species becoming extinct.
3. The current rate of extinction is high and human activities threaten biodiversity at all levels.
4. Humans have greater medical needs than at any other time in history, and many potential medicinal compounds are being lost as plant species become extinct.
Subtopic: Loss of Biodiversity |
79%
From NCERT
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Which of the following groups is most threatened by global extinctions?
1. mammals
2. birds
3. fish
4. amphibians
1. mammals
2. birds
3. fish
4. amphibians
Subtopic: Loss of Biodiversity |
78%
From NCERT
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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
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 |
53%
From NCERT
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In the following questions a statement of assertion (A) is followed by a statement of reason (R).
A: Sacred forests are refuge of rare, endangered and endemic taxa.
R: The land of sacred forests is fertile.
1. Both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2. Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true statement but Reason is false.
4. Both Assertion and Reason are false statements.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
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 |
57%
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Hints
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 |
82%
From NCERT
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Subtopic: Magnitude of Biodiversity | Biodiversity Patterns |
76%
From NCERT
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