Q. No.Consider the given two statements:
Assertion (A):
The female Anopheles mosquito is not considered a parasite.
Reason (R):
It actually is an ectoparasite and not an endoparasite.
1.
Both (A) and (R) are True and (R) correctly explains (A).
2.
Both (A) and (R) are True but (R) does not correctly explain (A).
3.
(A) is True; (R) is False
4.
Both (A) and (R) are False
Assertion (A):
Reason (R):
1.
Both (A) and (R) are True and (R) correctly explains (A).
2.
Both (A) and (R) are True but (R) does not correctly explain (A).
3.
(A) is True; (R) is False
4.
Both (A) and (R) are False
| 1. | Predation | 2. | Parasitism |
| 3. | Commensalism | 4. | Competition |
Consider the given two statements:
|
Assertion(A): |
The evolutions of the flower and its pollinator species are tightly linked with one another |
|
Reason (R): |
The mutually beneficial system should also be safeguarded against ‘cheaters’. |
|
1. |
Both (A) and (R) are True and (R) correctly explains (A). |
|
2. |
Both (A) and (R) are True but (R) does not correctly explain (A). |
|
3. |
(A) is True; (R) is False |
|
4. |
Both (A) and (R) are False |
| I: | is a member of Platyhelminthes. |
| II: | depends on two intermediate hosts (a snail and a fish) to complete its life cycle. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| 1. | superior species to exclude the inferior species from the habitat. |
| 2. | co-existence of competing species. |
| 3. | reproductive isolation and speciation. |
| 4. | competing species to grow exponentially. |
Consider the given two statements:
|
Assertion(A): |
The Abingdon tortoise in Galapagos Islands became extinct within a decade of introduction of goats on the island. |
|
Reason (R): |
Introduction of goats also introduced a new parasite that killed Abingdon tortoise. |
|
1. |
Both (A) and (R) are True and (R) correctly explains (A). |
|
2. |
Both (A) and (R) are True but (R) does not correctly explain (A). |
|
3. |
(A) is True; (R) is False |
|
4. |
Both (A) and (R) are False |
| I: | For plants, herbivores are the predators. |
| II: | Nearly 75 percent of all insects are known to be phytophagous. |
| III: | Thorns in plants are the most common morphological means of defense against herbivory. |
| IV: | Cardiac glycosides produced by certain plants can be very detrimental to the health of herbivores. |
2. 2
3. 3
4. 4
Consider the given two statements:
|
Assertion (A): |
Predators in nature are ‘prudent’. |
|
Reason (R): |
Prey species have evolved various defenses to lessen the impact of predation |
|
1. |
Both (A) and (R) are True and (R) correctly explains (A). |
|
2. |
Both (A) and (R) are True but (R) does not correctly explain (A). |
|
3. |
(A) is True; (R) is False |
|
4. |
Both (A) and (R) are False |
| I: | act as ‘conduits’ for energy transfer across trophic levels |
| II: | keep prey populations under control |
| III: | help in maintaining species diversity in a community |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| 1. | an organism inflicts harm to another organism without any costs or benefits received by itself. |
| 2. | two species interact but do not affect each other. |
| 3. | one organism benefits and the other organism is neither benefited nor harmed. |
| 4. | species derive a mutual benefit. |
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