Biosphere is
1. | a component in the ecosystem |
2. | composed of the plants present in the soil |
3. | life in the outer space |
4. | composed of all living organisms present on earth which interact with the physical environment |
Ecological niche is
1. | the surface area of the ocean |
2. | an ecologically adapted zone |
3. | the physical position and functional role of a species within the community |
4. | formed of all plants and animals living at the bottom of a lake |