Identify the incorrect statement regarding abiotic factors in ecology:
1. | Temperature is an ecologically relevant factor as it affects enzyme kinetics. |
2. | Even aquatic animals face water-related problems. |
3. | Light is an ecologically relevant factor only for plants. |
4. | Sediment characteristics often determine the type of benthic animals found. |
Consider the given statements:
I: | Among the green, brown and red algae, red algae are expected to be found in the deepest waters. |
II: | The photosynthetic pigment, phycoerythrin, present in them is very efficient in absorbing the red light of PAR. |
1. | Both I and II are correct and II explains I. |
2. | Both I and II are correct but II does not explain I. |
3. | I is correct but II is incorrect. |
4. | Both I and II are incorrect. |
Rapid loss of nutrients from terrestrial ecosystems is not caused by:
1. | clear-cutting native forest | 2. | early seral stages |
3. | climax communities | 4. | low diversity |