Q. No.| I. | Ramdeo Misra is revered as the Father of Ecology in India. |
| II. | Ecology studies the interactions among organisms and between the organism and its physical [abiotic] environment. |
| III. | The study of Ecology begins at cellular biological organisation level. |
| IV. | Ecology at the organism level is essentially physiological ecology. |
| 1. | Only I and II | 2. | All except III |
| 3. | Only II, III and III | 4. | I, II, III and IV |
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The biome characterized by a mean annual temperature between 5C and 22C and mean annual precipitation between 5 cm and 50 cm is:
1. Desert
2. Arctic and alpine tundra
3. Temperate forest
4. Grassland
Formation of tropical forests needs mean annual temperature and mean annual precipitation as:
1. 18 – 25 °C and 150 – 400 cm
2. 5 – 15 °C and 50 – 100 cm
3. 30 - 50°C and 100 – 150 cm
4. 5 – 15 °C and 100 – 200 cm
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The following diagram shows the biome distribution with respect to annual temperature and precipitation. Grassland, Temperate forest and Coniferous forest are represented, respectively, by:
| 1. | A, C and F | 2. | B, D and E |
| 3. | B, E and F | 4. | A, D and F |
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| Assertion (A): | The physico-chemical [abiotic] components of ecosystem alone characterise the habitat of an organism. |
| Reason (R): | Interactions between organisms are not relevant for the study of ecology. |
| 1. | Both (A) and (R) are false. |
| 2. | Both (A) and (R) are true but (R) does not explain (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are true and (R) explains (A). |
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| I: | range of conditions that it can tolerate |
| II: | diversity in the resources it utilises |
| III: | its distinct functional role in the ecological system |
| 1. | Only I | 2. | Only III |
| 3. | Only II and III | 4. | I, II and III |
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The extent of geographical distribution for eurythermals and stenothermals is expected to be:
1. Equal for both
2. Larger for the former
3. Smaller for the former
4. Cannot be predicted
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| Assertion (A): | Temperature is most important ecologically relevant environmental factor. |
| Reason (R): | Temperature affects the kinetics of the enzymes. |
| 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
If global warming continues, how would the distributional range of some species be affected?
1. There will be a poleward shift
2. There will be an equatorial shift
3. No change is expected for any species
4. There will be shift from land to marine water
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