- 1(current)
Q. No.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): | Organisms living in oceans do not face any water-related problems. |
| Reason (R): | Life on Earth originated in water and is not sustainable without water. |
| 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: Life History Variations |
79%
Level 2: 60%+
Hints
If the stressful external conditions are localised, the organism can:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I. | migrate temporarily |
| II. | suspend their development till the return of favourable conditions |
| III. | become ‘regulators’ if they are ‘conformers’ |
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Life History Variations |
69%
Level 2: 60%+
Hints
Darwinian fitness is represented by:
| 1. | Low r value | 2. | High r value |
| 3. | High K value | 4. | Low K value |
Subtopic: Life History Variations |
83%
Level 1: 80%+
Hints
As a part of their reproductive strategy, pelagic fishes:
| 1. | Produce a large number of small-sized offspring |
| 2. | Produce a small number of small-sized offspring |
| 3. | Produce a large number of large-sized offspring |
| 4. | Produce a small number of large-sized offspring |
Subtopic: Life History Variations |
92%
Level 1: 80%+
Hints
Which of the following organisms does not breed only once in their life time?
| 1. | Pacific salmon | 2. | Marsupial mice |
| 3. | Birds | 4. | Bamboo |
Subtopic: Life History Variations |
85%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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