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siniylev [52]
3 years ago
7

Question 14

Biology
1 answer:
Whitepunk [10]3 years ago
8 0

Answer:

is A.

Explanation:

When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated Na+ channels. Na+ ions enter the cell, further depolarizing the presynaptic membrane. ... Fusion of a vesicle with the presynaptic membrane causes neurotransmitters to be released into the synaptic cleft.

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