Question

Organisms that must eat food for energy are _____.
multicellular
heterotrophs
macrophages
photosynthetic

Answer 1

heterotrophs eat carbon and transfer it into energy

Answer 2

The organisms that must eat food for energy are called heterotrophs. They absorb organic carbon in order to produce energy. We are consider heterotrophs, we need to eat food in order for us to have energy. 
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