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Q. No.Consider the two statements:
| Assertion (A): | Pyramid of energy can be inverted in aquatic ecosystems. |
| Reason (R): | Aquatic life defies second law of thermodynamics. |
| 1. | Both (A) and (R) are True and the (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Ecological Flow | Ecological Pyramids |
84%
Level 1: 80%+
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Consider the given two statements:
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: | Some aquatic ecosystems have inverted biomass pyramids. |
| II: | Such aquatic ecosystems also have inverted energy pyramids. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Ecological Pyramids |
87%
Level 1: 80%+
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Consider the given two statements:
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: | In most ecosystems, all the pyramids, of number, of energy and biomass are upright. |
| II: | Energy at a lower trophic level is always more than at a higher level. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Ecological Pyramids |
72%
Level 2: 60%+
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There are certain limitations of ecological pyramids which include:
I: They do not take into account saprotrophs.
II: They do not accommodate a food web.
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: They do not take into account saprotrophs.
II: They do not accommodate a food web.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Ecological Pyramids |
91%
Level 1: 80%+
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| Assertion (A): | Pyramid of energy can never be inverted in any ecosystem. |
| Reason (R): | Pyramids of biomass can be inverted in aquatic ecosystems. |
| 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. | (A) is False, (R) is True |
Subtopic: Ecological Pyramids |
87%
Level 1: 80%+
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What trophic level is typically accorded to saprophytes in an ecological pyramid?
| 1. | Primary Consumer |
| 2. | Secondary Consumer |
| 3. | Top Predators |
| 4. | Saprophytes are not given any trophic level in ecological pyramids. |
Subtopic: Ecological Pyramids |
93%
Level 1: 80%+
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What is a limitation of ecological pyramids?
| 1. | They always show producers at the bottom and top consumers at the top. |
| 2. | They show inverted numbers when depicting energy flow. |
| 3. | They can only depict energy, not matter. |
| 4. | They do not account for decomposers. |
Subtopic: Ecological Pyramids |
87%
Level 1: 80%+
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