Question

if Define food chain
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Answer 1

Answer:

Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.

OR

A food chain is a series of organisms where all the organisms are dependent on next organism as a source of food. The series of organism take part at various biotic levels to form a food chain. Each step of the food chain forms a tropic level.

Answer 2

Answer:

A food chain refers to the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism. The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain.

Example:

A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected. eg: A hawk might also eat a mouse, a squirrel, a frog or some other animal.