Devices that set up multiple exchange rates between the currencies of two nations are known as
a. tariff quotas.
b. export subsidies.
c. exchange controls.
d. variable currencies.
c. exchange controls.
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Which individual studied variations in the traits of pea plants and developed some of the basic principles of genetics?
a. Franklin b. Darwin c. Watson d. Crick e. Mendel
An epidemiologist is investigating a new disease and observes what appear to be bacteria inside tissue cells in clinical samples from victims. The scientist wants to try to isolate the bacteria in the lab. What culture conditions are most likely to be
successful? A) culturing on blood agar plates B) inoculation of EMB plates C) incubation in an anaerobic culture system D) inoculation of cell cultures E) inoculation of a minimal medium broth
How are populations involved in speciation?
A. interbreeding with other populations must occur B. large populations must decrease in number C. population gene pools must become isolated D. small populations must increase in number