| List-I | List-II | ||
| A | Population | 1 | Part of the earth consisting of all the ecosystems of the world. |
| B | Community | 2 | Assemblage of all the individuals belonging to different species occurring in an area. |
| C | Ecosystem | 3 | Group of similar individuals belonging to the same species found in an area. |
| D | Ecosphere | 4 | Interaction between the living organisms and their physical environmental components. |
| 5 | Classification of organisms based on the type of environment. | ||
A) A-1 B-4 C-5 D-3
B) A-5 B-2 C-3 D-1
C) A-2 B-3 C-5 D-4
D) A-3 B-2 C-4 D-1
Correct Answer: D
Solution :
Population is a group of organisms of same species in a given area. Community is a group of populations of different species in a given area. It may include all the population in that area i.e., all plants, all animals and micro-organisms. Ecosystem is the whole biotic community in a given area plus its abiotic environment. It therefore includes the physical and chemical nature of the sediments water and gases as well as all the organisms. - The earths living organisms interacting with their physical environment may be considered as vast ecosystem and this is designated as biosphere or ecosphere.
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