Answer:
It allows information to go from one neuron to another through neurotransmitters.
A polar molecule has a positive and negative end because of electronegativity.
Answer:
Well, I'd assume the heart
Explanation:
because it pumps blood and oxygen and everything really relies on it.
it could also be other important organs such as the brain, heart, kidneys, liver and lungs, but the heart is the root of all the bodies functions working properly.
Answer:
Plants
Explanation:
The cell membrane is the plants.