By age ________, approximately half of adults have some gray hair

Skin sensory organs that convey pain stimuli are termed

A) Merkel's discs B) free nerve endings C) Meissner's corpuscles D) Pacinian corpuscles

When gathering credible evidence about program objectives, what term describes the use of multiple sources of data for the same indicator??

A) multi-tasking B) converging C) triangulation D) assimilation