- 1(current)
Q. No.Identify the incorrect statement:
| 1. | Biodiversity is the term popularised by the sociobiologist Edward Wilson to describe the combined diversity at all levels of biological organisation. |
| 2. | IUCN stands for International Union for Conservation of Nature and Natural resources. |
| 3. | Robert May places the global species diversity in the range of 20 to 50 million. |
| 4. | More than 25 percent of the drugs currently sold in the market are derived from the plants. |
Subtopic: Magnitude of Biodiversity |
90%
From NCERT
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the most appropriate answer from the options given below :
| Assertion (A): | Biologists make a statistical comparison of the temperate-tropical species richness of an exhaustively studied group of insects and extrapolate this richness to other group of animals and plants and come up with a gross estimate of the total number of species on earth. |
| Reason (R): | Insects are the most successful living organisms among animals and plants. |
| 1. | Both (A) and (R) are True but (R) does not explain (A). |
| 2. | (A) is True but (R) is False. |
| 3. | (A) is False but (R) is True. |
| 4. | Both (A) and (R) are True and (R) explains (A). |
Subtopic: Magnitude of Biodiversity |
60%
From NCERT
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Amongst the vertebrates, the Class with maximum number of species is:
| 1. | Pisces | 2. | Reptilia |
| 3. | Aves | 4. | Mammalia |
Subtopic: Magnitude of Biodiversity |
66%
From NCERT
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If we consider invertebrates, the maximum global biodiversity, after insects, is seen in:
| 1. | Crustaceans | 2. | Echinoderms |
| 3. | Mollusks | 4. | Annelids |
Subtopic: Magnitude of Biodiversity |
82%
From NCERT
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The following pie chart proportionates the number of species in various invertebrate taxa. A, B and C will represent:
| A | B | C | |
| 1. | Insects | Echinoderms | Molluscs |
| 2. | Insects | Molluscs | Crustaceans |
| 3. | Crustaceans | Insects | Molluscs |
| 4. | Molluscs | Crustaceans | Insects |
Subtopic: Magnitude of Biodiversity |
93%
From NCERT
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The following pie chart proportionates the number of species in various vertebrate taxa. What will be true regarding the animals shown in the pie chart?
1. Only Statement I and Statement II.
2. Only Statement I and Statement III.
3. Only Statement II and Statement III.
4. Statement I, Statement II and Statement III.
| Statement I: | ‘A’ group will be of fishes. |
| Statement II: | ‘B’ and ‘C’ are endotherms. |
| Statement III: | ‘D’ are more successful on land than ‘E’. |
2. Only Statement I and Statement III.
3. Only Statement II and Statement III.
4. Statement I, Statement II and Statement III.
Subtopic: Magnitude of Biodiversity |
59%
From NCERT
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The following pie chart proportionates the number of species in various plant taxa. What will be true regarding the organisms shown in the pie chart?
1. Only Statement I.
2. Only Statement II.
3. Both Statement I and Statement II.
4. Neither Statement I nor Statement II.
| Statement I: | All members of A are heterotrophs. |
| Statement II: | The primary reason for the success of B on land is the presence of the reproductive organ, flower. |
2. Only Statement II.
3. Both Statement I and Statement II.
4. Neither Statement I nor Statement II.
Subtopic: Magnitude of Biodiversity |
78%
From NCERT
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- 1(current)
Q. No.
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