The second one I think .............
Answer: Acetylcholine is released from the axon terminal and diffuses across the synapse to link to a receptor in the surface of the motor end plate.
Explanation:
Sinapsis in biology is a structure in which a neuron cell communicates with another using an electric or chemical sign.
The main reason why the testes are suspended within the scrotum is to provide cooler temperature for the testes and make it fertile for penetrating the egg. The Scrotum may contract or lengthen depending on the temperature of its surrounding.
