Carrie is being examined by her dentist, who notices that she has many cavities (caries). When she tells him about her dental regimen, he explains to her that she doesn't brush her teeth often enough to remove the bacteria that ________, which is why she has so many cavities.
A. directly secrete acids that dissolve enamel
B. destroy the gums so that the teeth loosen
C. infect the gums, causing dental caries
D. metabolize carbohydrates in food, producing acidic by-products that damage enamel and dentin
Answer: D
You might also like to view...
The preferred form of stored fuel for migratory animals is
A) Amino acids. B) Glycogen and other types of starch. C) Lipid. D) Protein.
Atrial flutter is characterized by a ____ rhythm, as impulses pass from the AV node to the ventricles
a. 1:1 b. 2:1 c. 3:4 d. 5:2 e. 7:1
______ increases the apical surface area for rapid diffusion
Fill in the blank(s) with the appropriate word(s).
An isometric contraction is described as
A. action potential frequency is high enough that no relaxation of muscle fibers occurs. B. a muscle produces constant tension during contraction. C. a muscle produces an increasing tension as the length remains constant. D. a muscle produces increasing tension as it shortens. E. a muscle produces tension, but the length of the muscle is increasing.