Answer:
<u>acetylcholine</u>
Explanation:
In the pre-synaptic knob there are vesicles which contain a transmitter substance called acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the pre-synaptic membrane releasing the acetylcholine.
The transmitter substance makes the membrane permeable. The neuromuscular junction contains the sensory neurone(afferent), motor neurones(efferent) and the relay neurones(connector).
Answer:
the chemicals needed to produce molecules comes from the food which an organism eat.
Explanation:
hope this helps
C is most likely your answer (my bad if I am wrong)
Answer:
where is this from?
Explanation:
i don't see answer choices?