- 1(current)
Q. No.For the purpose of ecological studies:
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: | the level of biological organization, where the study is begun, is the organism. |
| II: | a group of individuals resulting from asexual reproduction is also considered a population. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Introduction to Ecology | Population Attributes |
71%
Level 2: 60%+
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To evolve the desired traits, natural selection operates at the level of:
| 1. | Organism | 2. | Population |
| 3. | Species | 4. | Biological community |
Subtopic: Population Attributes |
62%
Level 2: 60%+
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | An individual may have births and deaths, but a population has birth rates and death rates. |
| Statement II: | An individual is either a male or a female but a population has a sex ratio. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Population Attributes |
96%
Level 1: 80%+
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In a pond, there were 20 lotus plants last year. If through reproduction 4 new lotus plants are added, the number of offspring per lotus per year would be:
| 1. | 0.2 | 2. | 0.4 |
| 3. | 2.0 | 4. | 4.0 |
Subtopic: Population Attributes |
85%
Level 1: 80%+
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If in a pond, there were 20 lotus plants last year and 8 plants died in a year, taking the current population to 12, the death rate of lotus plants in this pond will be:
| 1. | 8 offspring per lotus per year |
| 2. | 12 offspring per lotus per year |
| 3. | 0.8 offspring per lotus per year |
| 4. | 0.4 offspring per lotus per year |
Subtopic: Population Attributes |
88%
Level 1: 80%+
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Which of the following will not be an attribute of a population but will be an attribute of an individual?
1. Birth rate
2. Death
3. Death rate
4. Sex ratio
1. Birth rate
2. Death
3. Death rate
4. Sex ratio
Subtopic: Population Attributes |
93%
Level 1: 80%+
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Figure A is population pyramid for India in 1971 and Figure B is population pyramid for India in 2024. What conclusions can be drawn from the given figures?
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | The population of India has reduced over the given period of time. |
| II: | India has become the most populous country in 2024 |
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Population Attributes |
Level 4: Below 35%
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What can be predicted about the growth status in coming future of the population for which the age sex pyramid is shown below?
| 1. | It will remain stable |
| 2. | It will grow in size |
| 3. | It will decline in size |
| 4. | Nothing can be predicted on the basis of the given pyramid |
Subtopic: Population Attributes |
83%
Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | The tiger census in our national parks and tiger reserves is often based on pug marks and fecal pellets. |
| Reason (R): | For ecological investigations, it is mandatory to know the absolute population densities in all instances. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True but (R) is False |
| 3. | (A) is False but (R) is True |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Population Attributes |
58%
Level 3: 35%-60%
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Consider the given two statements:
| Assertion (A): | Competition can be avoided even if two species compete for the same resource. |
| Reason (R): | Totally unrelated species could also compete for the same resource. |
| 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 False but (R) is True |
| 4. | (A) is True but (R) is False |
Subtopic: Population Attributes |
73%
Level 2: 60%+
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- 1(current)
Q. No.
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