Chapter 25 - Ecosystem -5


Biology Class 12
1. Nitrates are lost as a result of the activities of certain soil viruses.


2. The total amount of energy fixed by a plant is gross secondary production


3. The major unit of Ecology is the biosystem.


4. Populations of plants and animals in the Ecosystem do not function dependently of each other.


5. Major regional ecological community of plants and animals forms Biology.


6. Biome is a thin layer of earth in which all living organism exist


7. Biotic component including plants and animals are supported by Environment.


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