Topic Test — Cumulative exam Answers

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44

A neural __________ or, chemical messenger, travels across the synapse and binds to a neural __________.

A
transmitter...receptor
B
transmitter...transmitter
C
receptor...transmitter
D
receptor...receptor
50

___________ of electromagnetic radiation is visible to the human eye.

A
All
B
A narrow portion
C
The white color
D
The dark color

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