The apple maggot's natural host plant is the hawthorne; however, over the past 150 years, new populations were found
that feed on apples and cherries. This is an example of ____ speciation via the development of ____.
a. sympatric; allopolyploidy
b. allopatric; host races
c. sympatric; host races
d. allopatric; autopolyploidy
e. sympatric; autopolyploidy
ANSWER: c
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Photoreceptors that detect dim light are called ________ cells
a. cone b. amacrine c. rod d. horizontal
When Pfr absorbs far-red light, the Pfr is converted to Pr. Indicate whether the statement is true or false
The Southern Hemisphere has no alpine tundra. Indicate whether the statement is true or false
Industrial melanism is a term
A. explaining that the darker moths have higher mutation rates because of industrialization. B. describing the widespread implementation of pollution controls. C. describing the color change induced by living in industrialized areas. D. describing the evolutionary process in which initially light-colored organisms become dark as a result of natural selection. E. explaining that the darker moths having higher reproductive success because of their pigmentation.