I'm sure that the answer is B
The cell will use Endocytosis
<span>I think it's right, sorry if its not. ATP binding site Actin binding site</span>
Answer: Acetylcholine.
Explanation: Acetylcholine is a neurotransmitter that mediates many sinaptic functions in nervous system. When a motor neuron releases acetylcholine at the neuromuscular junction, it binds to nicotinic receptors in muscular fibers and activates a signal cascade that will free intracellular calcium ions, causing the contraction of the muscular fibers.
Klay does not have to worry about anything blowing up or inhailing harmful gases.
