Why survival of heterotrophs depend on autotrophs

While talking in terms of the food chain, organisms are classified based on their trophic or feeding levels in the ecosystem. Autotrophs like plants that produce their own food, form the producer level. All food chains begin at the producer level. Primary consumers eat the producers for obtaining energy. Primary consumers are eaten up by the secondary consumers; secondary consumers are eaten by the tertiary consumers, and so on.

A common example for explaining the food chain is an ecosystem where grass is the producer, and a mouse that eats up the grass becomes the primary consumer. The mouse becomes prey for a snake, who becomes the secondary consumer. Eagles eat snakes, and become tertiary consumers.

In addition, photosynthesis sustains the organisms that heterotrophs consume in order to stay alive. Even if a heterotroph is strictly carnivorous and does not eat plants, it must eat animals that eat plants to survive. Explain why autotrophs and heterotrophs depend on photosynthesis to obtain the energy they need for life processes. Humans are heterotrophs, as are all animals.

Heterotrophs depend on autotrophs, either directly or indirectly. Deer and wolves are heterotrophs. The survival of the heterotrophs depends directly or indirectly on the autotrophs because the autotrophs are capable of preparing their nutrients and food for their own and the heterotrophs are very much relying on the nutrients. Option d is the correct answer.

Correct Incorrect 0. Watch More Related Solutions. Chemistry Class 9. Swelling of guard cells leads to a opening of stomatal pores b closing of stomatal pores c both A and B d none of these.

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Zeeman and Stark effects can be explained by quantum number.