The population growth in less-developed countries is
A. modestly increasing.
B. stable.
C. dramatically increasing.
D. leveling off.
E. negative.
Answer: C
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In flowering plants, petals form when ____ genes are turned on
a. only A b. only B c. only C d. both A and B e. both B and C
Fenestrated capillaries are unique in their ability to
A) move molecules across endothelial cells by transcytosis. B) maintain a low permeability to small water-soluble molecules. C) allow few molecules to pass between endothelial cells. D) allow relatively large molecules to pass between endothelial cells E) restrict the passage of proteins across endothelial cells.
Which of the following describes what may be occurring as competitive inhibition slows down the catalytic reaction of an enzyme?
a) all of the choices are correct b) the inhibitor induces a conformational change in the enzyme that prevents the chemical reaction from taking place c) the inhibitor competes as an alternative substrate, thereby forcing the enzyme to catalyze the enzymatic reaction on the inhibitor instead of the substrate d) the inhibitor binds to the enzyme and increases the concentration of available enzyme active sites
Please choose the microbial control method that neither inhibits nor kills microbes, but instead physically removes them from liquids or air.
A) Cold sterilization B) Lyophilization C) Filtration D) Desiccation E) Irradiation