Question

Why heterotrophs survival depends directly or indirectly on autotrophs?

Answer 1

The survival of the heterotrophs depends directly or indirectly on the autotrophs because the autotrophs are capable of preparing their nutrients and food for own and the heterotrophs are very much relying on the nutrients.

If we take an example of the lion then, they hunt the small animals for their survival.

Answer 2

Hetrotrophs get their source of energy (food) from autotrophs. Autotrophs prepare food themselves but hetrotrops do not.

Example 1 we eat food say for example roti which is made up of wheat which is a plant which is an autotroph.

Example 2 a lion get it's food by hunting small preys like deer which gets its food by eating grass or plant which again is an autotrophs.

Hence we can conclude hetrotrops depend upon autotrophs