Q. No.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
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
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Identify the incorrectly matched pair:
|
1. |
Dodo |
Mauritius |
|
2. |
Quagga |
Africa |
|
3. |
Thylacine |
Australia |
|
4. |
Stellar’s sea cow |
USA |
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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 |
Parthenium hysterophorus:
| I: | is also called as carrot grass or the gajar grass. |
| II: | is a common invasive species in India and came as a contaminant with wheat |
| III: | produces allelopathic chemicals |
| IV: | produces pollens that are common cause of allergies in humans |
1. Only I, II and III are correct
2. Only I, II and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
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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
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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
| Assertion (A): | The current mass extinction is different from the previous episodes of mass extinctions. |
| Reason (R): | It is happening at a faster rate and is mainly anthropogenic in nature. |
| 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. |
- 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
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| Assertion (A): | Biosphere reserves attempt to achieve three interconnected functions: conservation, development and logistic support. |
| Reason (R): | They are legally protected areas where no human activity is allowed. |
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. |
- 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
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