___________ is an essential step for causing vesicles to fuse with the presynaptic membrane. A) Calcium influx into the presynaptic terminal B) Hyperpolarization at the presynaptic terminal C) Movement of chloride ions across the postsynaptic membrane of dendrites D) Inhibition at the postsynaptic membrane of dendrites Enter Letter Answer Here _____
___________ is an essential step for causing vesicles to fuse with the presynaptic membrane.
A) Calcium influx into the presynaptic terminal
B) Hyperpolarization at the presynaptic terminal
C) Movement of chloride ions across the postsynaptic membrane of dendrites
D) Inhibition at the postsynaptic membrane of dendrites
Enter Letter Answer Here _____