Answer:
Nerve impulse
Explanation:
A nerve impulse is transmitted through the synaptic cleft by acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the presynaptic membrane releasing the acetylcholine. The transmitter substance makes the membrane permeable. An action potential is then formed along the neuron.
I'm pretty sure it's tissue, but i'm not sure
An atom consists of an atomic nucleus composed of positively charged protons and neutral or uncharged neutrons.
The answer is
D) Pp, PP, and pp.
i attached a picture of a punnett square i did to help you understand the answer more, if you want.