Dental caries are caused by
A. bacteria within the mouth metabolizing sugar.
B. enzymes within the mouth metabolizing sugar.
C. yeast within the mouth metabolizing fatty acids.
D. bacteria within the mouth metabolizing fatty acids.
E. bacteria within the mouth metabolizing proteins.
Answer: A
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Which of the following is true about temporal variation in community biomass?
A. It is a characteristic of high species richness. B. It increases with increases in species richness. C. It decreases with increases in species richness. D. It is predicted by the intermediate disturbance hypothesis. E. It is predicted by Clements' organismic model of community function.
What is the difference between a strict anaerobe and a facultative anaerobe?
What will be an ideal response?
Glycoproteins and glycolipids perform what function on the surface of a plasma membrane?
a. cell-cell recognition b. act as enzymes c. part of the cytoskeleton d. Glycoproteins and glycolipids do not live on the surface of the plasma membrane.
When humans breathe using only the mouth, which of the following is most diminished?
a. filtering b. warming c. moisturizing d. texturizing e. vocalizing