Question

why autotrophs are termed producers of food chain? termed producers of food chain?

Answer 1

autotrophs like plants are called producers of food chain because they can make their own food with the process of photosynthesis.
heterotrophs or consumers cannot make their own food and depend on the autotrophs.

Answer 2

INTRODUCTION;Producers belong to autotrophic nutrition.

Plants are the only organism which can prepare the food by utilizing light energy and not depended on other organisms for nutrition purpose but all the other levels of organisms obtain their nutrition from plants(producers).
Because of this function plants are called as producers or universal food provider.
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