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Science · 2024 · 3 marks
CBSE 2024 · Region 5 · Set 1 · Q33
Differentiate between food chain and food web. In a food chain consisting of deer, grass and tiger, if the population of deer decreases, what will…
Differentiate between food chain and food web. In a food chain consisting of deer, grass and tiger, if the population of deer decreases, what will happen to the population of organisms belonging to the first and third trophic levels?
Marking-scheme solution
| Food chain | Food web |
| It is a series of organisms feeding on one another at various levels | It is a network of interconnected food chains / series of branching lines which provides a number of feeding connections amongst different organisms. |
Population of grass/ first trophic level will increase.
Population of tiger/ third trophic level will decrease.
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