In what part of the world is the mutation for lactose tolerance most concentrated?
A) East Asia
B) South America
C) northern Europe
D) North America
Answer: C
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Which of the following is the best reason that the origin of species according to creation science should not be included in the curriculum of biology courses?
A. It is not a scientifically testable theory. B. It has proven to be false. C. It has been superseded by more modern theories. D. It is contrary to the beliefs of most scientists. E. It constitutes the teaching of religion.
Bryophytes may feature all of the following at some time during their existence except
A) microphylls. B) rhizoids. C) archegonia. D) sporangia. E) placental transfer cells.
A scientist is studying several areas along an elevation gradient. Her study involves prescribed burns (purposefully set, low-intensity fires) in the different areas, followed by a comparison of the type and abundance of organisms that colonize them over the next ten years. What scale best describes her study?
A. Population ecology B. Physiological ecology C. Ecosystem ecology D. Organismal ecology E. Community ecology
A condition in which one gene pair masks the expression of a nonallelic gene pair is called ________
A) dominance B) epistasis C) codominance D) additive alleles E) recessiveness