If I am not wrong, I believe the answer is Producers. The reason as to why I say that producers is the answer is because in every food chain, there needs to be a base. That base is what provides the starting energy that will later on move up in the food chain.
Something with higher electric potential than the ground or a defined null or neutral point. Electrons flow from the positive point in a circuit. See also negative, null, and potential.
Answer:
I don't understand it I am so sorry
Not true, certain chemical transmitters stimulate certain receptors
Answer:
to produce food for the plant
