CBSE Class 10 Answered
Define the following terms:
i) Evolution
ii) 10 % energy law
iii)food chain
iv) Food Web
Asked by vijayjethi17 | 01 Mar, 2017, 06:34: PM
Expert Answer
Hi Vijay,
1. Evolution can be defined as the formation of more complex organisms from pre-existing simpler organisms over a certain period.
2. Ten Percent Law states that, ‘Only 10% of the energy entering a particular trophic level of organisms is available for transfer to the next higher trophic level’.
3. The sequential process of eating and being eaten is called a food chain.
4. A network of interconnecting food chains in a natural community of different organisms is called a food web.
Answered by | 02 Mar, 2017, 05:38: PM
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