1.

What does "a" and "b" indicate in the given diagram ?

A. a = Synaptic bulb b = Phagocgtosis
B. a = Presynaptic b = Phagocytosis
C. a = Synaptic gap b = Secretion of neurotranmetter
D. a = Presynaptic bulb b = Secretion neurotranmitter
Answer» E.


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