A physical structure that is characteristic of each type of ecosystem is due to:
1. | Interaction between various biotic components of the ecosystem |
2. | Interaction between various abiotic components of the ecosystem |
3. | Interaction between various biotic and abiotic components of the ecosystem |
4. | Interaction of producers with abiotic components of the ecosystem |
Organisms that are capable of conversion of inorganic material into organic material with the help of the radiant energy of the sun include:
I: | Plants |
II: | Photosynthetic bacteria |
III: | Chemosynthetic bacteria |
1. | I only | 2. | I and II only |
3. | I and III only | 4. | I, II, and III |
Stratification of an ecosystem means:
1. | Vertical distribution of different species occupying different levels |
2. | Vertical distribution of different species occupying the same levels |
3. | Horizontal distribution of different species occupying different levels |
4. | Horizontal distribution of different species occupying the same levels |
The best way to describe an ecosystem would be that they are:
1. | processors of energy and transformers of matter. |
2. | processors of matter and transformers of energy. |
3. | processors of matter and energy. |
4. | transformers of matter but not of energy. |