Parapatric speciation occurs most often ____
a. within in the same home range
b. populations inhabiting different areas while maintaining contact along a common border
c. within a group of interbreeding populations
d. on either side of geographic barriers
e. by polyploidy
ANSWER: b
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The taiga is best described as what type of
forest? a. deciduous b. thorn c. evergreen coniferous d. broad-leafed e. shrub
Total fertility rates are ____
a. highest in developing countries in Asia and Africa b. higher now than 50 years ago c. at the replacement level d. currently measured at 6.5 e. above replacement in developed nations
For the yeast galactose metabolizing gene, GAL1, to be transcribed, the regulatory protein produced by the GAL4 gene binds to
A) RNA polymerase. B) upstream activator sequence G (UASG) region. C) a ribosome. D) the operator sequence. E) the repressor protein.
A diagnosis of ________ (or high blood pressure) is made when blood pressure is higher than 140/90
Fill in the blank(s) with correct word