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Q. No.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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How many of the given statements will be true regarding the graph showing species – area relationship?
| I. | Within a region, species richness decreases with increasing explored area. |
| II. | The rectangular hyperbola represents the relation between species richness and area for angiosperm plants, birds, bats and freshwater fishes, for example. |
| III. | Z represents the regression coefficient or the slope of the line. |
| IV. | The value of Z lies in the range of 0.1 to 0.2 regardless of the taxonomic group or the region. |
| V. | For frugivorous birds and mammals in the tropical forests of different continents, the slope is found to be 1.15. |
| VI. | If the species area relationship is analysed for very large areas, the slope of the line is much steeper and Z value lies in the range of 0.6 to 1.2. |
| 1. | 3 | 2. | 4 |
| 3. | 5 | 4. | 6 |
Subtopic: Biodiversity Patterns |
67%
From NCERT
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The given figure shows one of the most important causes of the loss of biodiversity on Earth.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | A is the emergence of discontinuities in an organism's preferred environment (habitat), causing population discontinuities and ecosystem decay. |
| II: | B is the process by which a natural habitat becomes incapable of supporting its native species. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Loss of Biodiversity |
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Match each picture in Table I with the name of the organism in Table II and select the correct match from the codes given.
| Table I | |||
| A |  |
B |  |
| C |  |
D |  |
| Table II | |||
| P | Thylacine | Q | Dodo |
| R | Quagga | S | Steller’s sea cow |
| A | B | C | D | |
| 1. | Q | R | S | P |
| 2. | Q | R | P | S |
| 3. | P | Q | R | S |
| 4. | P | S | Q | R |
Subtopic: Loss of Biodiversity |
82%
From NCERT
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The beautiful flowers shown in the picture actually belong to a plant infamously called as the ‘Terror of Bengal’. What will be true for this plant?
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect.
| Statement I: | It was always a native of India. |
| Statement II: | It reproduces very slowly with the help of offset. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect.
Subtopic: Loss of Biodiversity |
72%
From NCERT
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Study the given picture and select the correct statements:
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
| Statement I: | A is Clarias gariepinus and its introduction in Indian rivers is posing a threat to the indigenous catfishes. |
| Statement II: | B is Nile perch and its introduction into Lake Victoria in East Africa led to the extinction of an ecologically unique assemblage of more than 200 species of Cichlid fish in the lake. |
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Loss of Biodiversity |
84%
From NCERT
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What will be true for the portion highlighted in green in the map shown?
| I: | It is the Amazon rainforest area. |
| II: | It is called as the ‘lung’ of planet Earth. |
| III: | This area is very poor in biodiversity. |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Biodiversity Patterns |
92%
From NCERT
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The given picture shows the Mawphlang Sacred Grove in East Khasi Hills.
1. Only Statement II is correct.
2. Only Statement III is correct.
3. Only Statement I and Statement III are correct.
4. Only Statement II and Statement III are correct.
| Statement I: | These hills are located in the state of Manipur. |
| Statement II: | They are in-situ method of biodiversity conservation. |
| Statement III: | Such sacred groves are also found in Aravalli Hills of Rajasthan, Western Ghats of Karnataka and Maharashtra, and the Surguja, Chanda and Bastar areas of Madhya Pradesh. |
2. Only Statement III is correct.
3. Only Statement I and Statement III are correct.
4. Only Statement II and Statement III are correct.
Subtopic: In Situ Conservation of Biodiversity |
80%
From NCERT
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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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