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Q. No.Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A):
There is a steady increase in species richness from the arctic to the tropics.
Reason (R):
Seasonal variation is substantially more in tropics than in arctics.
In the light of the above statements, choose the most appropriate answer from the options given below :
1.
Both (A) and (R) are True and (R) is the correct explanation of (A).
2.
Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.
(A) is True but (R) is False.
4.
Both (A) and (R) are False.
Subtopic: Biodiversity Patterns |
64%
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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): | Species diversity contributes to the well-being of an ecosystem. |
| Reason (R): | Rich biodiversity contributes to higher productivity of an ecosystem. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Importance of Biodiversity |
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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): | Ex-situ conservation, while helpful in humankind's efforts to sustain and protect our environment, is rarely enough to save a species from extinction. |
| Reason (R): | It is to be used as a last resort, or as a supplement to in-situ conservation. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Ex Situ Conservation of Biodiversity |
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Consider three sample areas with the following composition:
| Sample area I: | has three species of birds, two are represented by one individual each and the third by four individuals |
| Sample area II: | has three species of birds, each represented by two individuals |
| Sample area III: | has a species of insects, a species of mammals and a species of birds, each with two individuals |
Which area will be considered as the most diverse?
1. Sample area I
2. Sample area II
3. Sample area III
4. Sample area II and Sample area III are equally diverse
Subtopic: Biodiversity Conservation |
86%
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Regarding the gradients of biodiversity:
| I: | As we move from poles to the equator, broadly speaking, biodiversity decreases. |
| II: | There is an increase in species diversity from lower to higher altitudes. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Biodiversity Patterns |
77%
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Match each item in Column I with one in Column II and choose the correct answer from the codes given below:
|
Column I |
Column II |
||
|
A. |
Genetic diversity |
a. |
Western ghats have greater amphibian diversity than eastern ghats |
|
B. |
Species diversity |
b. |
India has more than 50000 genetically different strains of rice |
|
C. |
Ecological diversity |
c. |
India has more ecosystems than Norway |
Codes :
| A | B | C | |
| 1. | a | b | c |
| 2. | b | a | c |
| 3. | c | b | a |
| 4. | b | c | a |
Subtopic: Introduction & Types |
86%
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Subtopic: Introduction & Types |
87%
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Identify the incorrectly matched pair:
|
1. |
Dodo |
Mauritius |
|
2. |
Quagga |
Africa |
|
3. |
Thylacine |
Australia |
|
4. |
Stellar’s sea cow |
USA |
Subtopic: Loss of Biodiversity |
92%
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In a co-evolved highly specific plant-pollinator obligatory mutualism, if one of the members gets extinct, the other most likely:
| 1. | would increase in number but the diversity in the population would reduce |
| 2. | would increase in number and the diversity in the population would increase |
| 3. | would decrease in number and the diversity in the population would reduce |
| 4. | also go extinct |
Subtopic: Loss of Biodiversity |
77%
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The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as:
| 1. | CITES Convention | 2. | The Earth Summit |
| 3. | G-16 Summit | 4. | MAB Programme |
Subtopic: Ex Situ Conservation of Biodiversity |
97%
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