The development of penicillin-resistant bacteria represents an example of ____
a. punctuated equilibrium
b. speciation
c. genetic drift
d. microevolution
e. mutation
ANSWER: d
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Which of the following is NOT important for the adherence of bacteria to other bacteria as well as to host tissue?
A) adherence polymers B) capsule C) glycocalyx D) slime layer
What is the measure that a particular outcome would occur called?
a. Probability b. Statistical significance c. Hypothesis d. Divergence e. Sampling error
Why is the continual use of the antibacterial triclosan in soaps a potential health risk?
A. Bacteria could evolve a resistance to commonly used antibiotics. B. Triclosan is lethal to mammals at low concentrations. C. Antibacterial soaps are often contaminated with viruses. D. The use of soap is ineffective at stopping the spread of disease.
Which level of taxonomy encompasses all of the others?
a. family b. class c. order d. species e. genus