Rimantadine is an effective antimicrobial agent against:
A) viruses
B) protozoa
C) bacteria
D) fungi
Answer: A) viruses
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What adjective best describes the risk of being infected with HIV from a blood transfusion?
Which of the following statements best describes DNA polymerase?
A. It is an enzyme required to produce a primer needed for DNA replication. B. It is an enzyme that catalyzes the addition of nucleotides to the 5? end of a growing DNA strand. C. It is an enzyme that requires the presence of a small double-stranded nucleic acid primer to catalyze the addition of nucleotides to the 3? end of a growing DNA strand. D. It is an enzyme required to glue pieces of DNA fragments together. E. It is an enzyme that polymerizes to the DNA and keeps the replication fork open.
The plants and animals now present on acreage
from which the trees were removed ten years earlier represent
a. primary succession. b. a climax forest. c. pioneer species. d. secondary succession. e. species introduction
The study of the world-wide distribution of plants and animals is ____
a. fossilization b. fossilization dating c. biogeography d. plate tectonics e. radiometric dating