Both CT (computed tomography) and PET (positron emission tomography) neuroimaging techniques were developed in the 1970s

The overly broad use of words, where children overgeneralize their meaning, is known as

a. overextension. c. referential style. b. underextension. d. expressive style.

John's grandmother says she has "hardening of the arteries." The more technical term for this condition is:

a. osteoporosis b. atherosclerosis c. hypertension d. apnea