A(n) ________ is an increase in disease occurrence within a large population over a very wide region (usually the world).
A. endemic
B. epidemic
C. pandemic
D. sporadic disease
Answer: C
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Which statement is true?
a. Atmospheric nitrogen is abundant and easily fixed by plants and phytoplankton. b. Climate models used by scientists only incorporate human contributions to the atmosphere. c. Fossil fuels are regenerated too slowly to be considered a renewable resource. d. Carbon and other elements are permanently sequestered within sediment on the ocean floor.
If you placed a coleoptile in unidirectional light and then immediately covered the tip, which of the
following would happen? a. The coleoptile would bend toward the light. b. The coleoptile would not bend. c. The coleoptile would bend away from the light. d. The coleoptile would die. e. The coleoptile would grow in a spiral pattern.
A eukaryotic cell that has had a prokaryotic gene inserted is called
A. a genetically engineered cell. B. a GMO. C. a genetic recombinant. D. All of the choices are correct.
Suppose that a person is on a diet of primarily grains. Which two amino acids would such a diet likely be deficient in?
a. valine and lysine b. methionine and lysine c. isoleucine and lysine d. methionine and tryptophan