| 1. | Population | 2. | Biological community |
| 3. | Ecosystem | 4. | Biome |
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 |
| 1. | Organism | 2. | Population |
| 3. | Cell | 4. | Biomolecules |