Sympatric speciation through polyploidy has been a frequent phenomenon in the evolution of

a. insects.
b. mammals.
c. bacteria.
d. plants.
e. fish.


d

Biology & Microbiology

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A kilowatt, a unit of electrical power, is

(a) 10 watts. (b) 100 watts. (c) 1000 watts. (d) 1,000,000 watts.

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Gametangia are

(a) chlorophyll-producing structures. (b) sex organs. (c) a name for colony-forming algae. (d) found in slime molds.

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In general, control groups should be ________

a. older than the experimental group b. more fit than the experimental group c. more diverse than the experimental group d. as similar as possible to the experimental group

Biology & Microbiology

Which group of plants emerged first?

A) angiosperms B) gymnosperms C) pteridophytes D) conifers

Biology & Microbiology