You feel the pain of a sprained ankle when _____ relays messages from your ankle to your central nervous system

What is the term that developmentalists use to describe repetitive consonant-vowel combinations such as "ba-ba-ba" or "do-do-do"?

a. telegraphic speech b. babbling c. cooing d. gesturing

As Darius is sleeping, his dog begins to bark. As a result, his brain emits several sudden sharp waveforms known as:

a. hypnic jerks. b. sleep spindles. c. K complexes. d. alpha wave activity.