Marcia is 80 years old and is learning how to speak French and play the guitar for the first time. This new skill development is a good example of

a. multiple causation.
b. historical context

The most common cause of death in infants under 1 in the United States is

A) diseases and illnesses. B) child abuse. C) prenatal or birthing problems. D) motor vehicle accidents.

If Tabitha closes her eyes when she rides in her parent's car, she can still tell that the car is moving. This is due to the movement of tiny crystals in the

a. outer ear. b. cochlea. c. otolith organs. d. middle ear.