What is a food chain ? Write the common ...

What is a food chain ? Write the common food chain of a pond ecosystem .

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Food chain is

Number of human beings forming a chain for food

Animals near a source of food

Transfer of food energy from producers to consumers

None of the above

Food chain is:

transfer of chemical energy from producers to consumers

a number of human beings forming a chain for food

animals near a source of food

none of the above

In most food chains,

there are fewer individuals at the top predator level than at the second trophic level.

there is less usable energy at the herbivore level than at the carnivore level.

there are few individuals at the decomposer level.

there is less usable energy* at the auto-trophic level than at the carnivore level.