What is the ultimate source of energy for all ecosystems?

1 Answer
Nam D.
Apr 22, 2018

The Sun

Explanation:

The sun is the biggest and natural source of energy, providing it in the form of light to autotrophs like green plants, which will produce food by photosynthesis.

The energy then is transferred to secondary consumers by eating those plants, and that energy is again transferred again to tertiary consumers by eating those secondary consumers. About #10%# of energy is lost by moving up these trophic levels.

Here is an image of them:

https://biologydictionary.net/trophic-level/

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