McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test


1. Review the animation and answer the following questions.

All of the following are true about enamel EXCEPT

A. it is the hardest material in the body.
B. it covers the crown.
C. it secretes chemicals to neutralize acids.
D. it covers the cusps.


2. Acids produced by bacteria such as Streptococcus A. are protected from the neutralizing capacity of saliva by plaque.
B. are a component of plaque.
C. contribute to the strengthening of tooth enamel.
D. are essential to neutralize the basic conditions of certain foods.


3. Plaque is A. formed from enamel.
B. protects various bacteria such as Streptococcus.
C. capable of neutralizing acids.
D. composed of materials produced by bacteria.
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