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).
Cells undergo mitosis because there must be a process in which the nucleus is divided in order for there to be a successful reproduction for cells.
Because it has no seed or have seeds with wax coating that helps prevent water loss. So it would be the one that says , It has a waxy material that prevents the loss of water to the environment. because that is true.
The answer to this question is
B: the theory of evolution
I hyope this is correct and helps
All of them are true to exceptD
