It belongs to the Digestive system
The smallest thing they study is cells, i think!
hoped this helped!!
Answer:
The correct answer is ''It creates food that they can eat.''
Explanation:
The first link or first trophic level, of any food chain is always represented by the producers, (plants, which are photosynthetic organisms), autotrophic organisms, which are capable of transforming the light energy of the sun into a type of energy that can be used by the rest of the living beings. All heterotrophic organisms depend on these energy and matter conversions for their subsistence, that is, animals eat plants and take advantage of those organic compounds to create their own body structure, since heterotrophs, like humans, cannot carry out the photosynthesis, obtain energy by consuming autotrophs and their derivatives.
