Beginning in the 17th and 18th Centuries,with New Technologies Including

Multiple Choice

Beginning in the 17th and 18th centuries,with new technologies including the light microscope,scientists began to make a series of important new discoveries showing that ____.

A) a single nerve cell carries one type of information
B) nerve cells use electrical impulses to transmit signals
C) the mind works in isolation from the rest of the body
D) chemical messengers facilitate communication in the brain