Ampicillin, amoxicillin, mezlocillin, and penicillin G all have
A. an expanded spectrum of activity.
B. a semisynthetic nature.
C. a beta-lactam ring.
D. resistance to the action of penicillinase.
E. All of the choices are correct.
Answer: C
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Many health food stores carry enzyme preparations intended for oral ingestion (by mouth) to supplement existing enzymes in various organs like the liver, heart, and muscle. Use your knowledge of the digestion process to explain why these preparations are unlikely to be effective as advertised.
What will be an ideal response?
For most species that exhibit sexual dimorphism the
selection of a mate is the responsibility of the a. male. b. parents. c. female. d. larger individual, no matter the species. e. more colorful individual.
Beta interferon is used to treat
a. herpes infections. b. multiple sclerosis. c. measles. d. mumps. e. hepatitis C.
The effect of each dominant allele of a complex trait is ____________________ and _______________.Fill in the blank(s) with the appropriate word(s)