The correct answer is option d, that is, neurotransmitters.
A neurotransmitter refers to a chemical component, which is discharged at the terminal of a nerve fiber by the introduction of a nerve impulse, and by diffusing across the junction or synapse. It helps in the transfer of the impulse to another muscle fiber, nerve fiber, or some other composition. Acetylcholine is a kind of neurotransmitter, that is, used by neurons in the CNS and the PNS in the control of activities ranging from heart rate and muscle contraction to digestion and memory.
Answer:
Some parts of the cell theory would change because maybe the original one said something completely different. so some parts of the cell theory would change like: all cells comes from preexisting cells.And It would changed to something like: All cells form all by them selves.
Explanation:
I believe the answer is the primitive organic molecules were formed in an oxidizing atmosphere in the primordial soup.
