Which of the following is a sterilizing agent?
A) ozone
B) hydrogen peroxide
C) peracetic acid
D) dish soap
E) ozone and hydrogen peroxide
C
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What is the immediate effect of ligand binding to a G protein-coupled receptor?
A. the activation of an effector protein B. the release of the alpha subunit of the G protein C. a conformational change in the cytoplasmic domain of the receptor D. an exchange of GTP in place of GDP on the alpha subunit of the G protein
All components of a muscle have ____ orientation, resulting in ____
a. the same; a concerted pull in the same direction b. the same; a concerted push in the same direction c. a random; a dispersion of force d. a random; a concentration of force in the center of the muscle e. the same; a concentration of force in the center of the muscle
Hover flies like to drop in at outdoor picnics to
sample the sweets, but the reaction of the humans is to flee the scene because of the flies’ uncanny resemblance to bees. Thus, the survival of the hover fly is enhanced by a. mimicry. b. display behavior. c. warning coloration. d. chemical defenses. e. camouflage.
Why are STDs so easily spread?
What will be an ideal response?