A ________ epidemic is characterized by a sharp rise to a peak then a rapid, but not as pronounced, decline in the number of individuals infected.

A. common-source
B. sporadic
C. herd
D. propagated


Answer: A

Biology & Microbiology

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In 2005, a spot that is one centimeter from the center of a woody stem of an oak tree is in the bark. In what tissue will a spot that is one centimeter from the center be in 2050?

A) bark B) secondary phloem C) vascular cambium D) secondary xylem

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Cell differentiation accounts for cells of an organism

becoming different in a. composition. b. structure. c. function. d. development. e. all of these.

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How would you describe the body of a fungus?

A. tiny threadlike mycelia collectively make up the hypha B. tiny threadlike mycelia collectively make up the septa C. tiny threadlike hyphae collectively make up the mycelium D. tiny threadlike septa collectively make up the mycelium E. tiny threadlike mycelia collectively make up the dikaryote

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Many early anthropoids have smaller eye orbits than earlier primates. The smaller eye orbits suggests they were

a. diurnal b. arboreal c. hunters d. going blind

Biology & Microbiology