Question

what is food chain ?

Answer 1

Food chain is the chain where one organism depends on another I.e. All organisms are dependent instead of primary ones.

For example:
★ Plants←Deer←lion
★ Plants←insect←lizard←Crow←eagle

Answer 2

Answer:

A food chain is a linear network of links in a food web starting from producer organisms and ending at an apex predator species, detritivores, or decomposer species. A food chain also shows how organisms are related to each other by the food they eat. Each level of a food chain represents a different trophic level