McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test


1. Review the animation and answer the following questions.

Chemical digestion of this material begins in the mouth.

A. proteins
B. fats
C. carbohydrates
D. nucleic acids


2. Movement of food materials through the digestive system is aided by A. gravity.
B. peristalsis.
C. the push of saliva behind the food particles.
D. the wave action of ciliary hairs.


3. The tube connecting the back of the mouth with the stomach is called the A. esophagus.
B. trachea.
C. larynx.
D. epiglottis.
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