Unusually high rates of rare heritable traits, such as achromatopsia in the Pingelapese people, is often due to ________
A) genetic drift
B) natural selection
C) hitchhiking
D) the founder effect
E) None of the above.
D
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Which evolutionary adaptation is found in a typical desert plant?
A) shallow roots to quickly capture water B) broad leaves to capture the bright sunlight C) long-blooming flowers to attract pollinators D) deep roots to capture all available moisture
How many protons are translocated across the inner mitochondrial membrane by complex III for each pair of electrons passing through the electron transport chain?
A) 0 B) 1 C) 2 D) 4
Media containing some ingredients of unknown chemical composition are called ________ media.
A. defined B. complex C. synthetic D. undefined
Due to reproductive isolation, a new species of weaver bird is evolving. Is it likely to use a social or solitary nesting strategy?
A. It depends on whether it lives in the forest or the open savanna. B. It depends on whether it lives in near water or near the desert. C. It depends on how many eggs it lays. D. It depends on how many similar species it is competing with.