What energy role is filled by the first organism in a food chain?

i had the same q for science but no one nows not even yahhoo so im sooooo dumed

Hah i had the Q also and it is most likely:

The energy role that is filled by the first organism in a food chain is the producer... This means that the plant (the one that produces) is at the very bottom of the food chain and it produces the energy for all of the other animals...

HAWK

^

RAT

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PLANT