The evolution of a large number of species, each adapted to a distinct way of life, from a single ancestor describes
A. allopatric speciation.
B. sympatric speciation.
C. adaptive radiation.
D. polyploidy.
Answer: C
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What is one situation in which a metamorphic rock results?
A) A volcano ejects a rock and it cools on the surface of the earth. B) A sedimentary rock experiences the physical elements of the earth's surface. C) An igneous rock breaks down to fragments and then experiences heat and pressure. D) A sedimentary rock experiences intense heat and pressure.
What do prokaryotes lack?
A) a nucleus B) cell walls C) the ability to perform photosynthesis D) the ability to evolve over time
Which depositional landform is described as a long, steep-sided curving ridge of alluvium that filled an ice tunnel beneath a glacier and was left behind when the glacier melted?
A) moraine B) kame C) esker D) drumlin
Since increased numbers of women began smoking about 50 years ago, lung cancer rates in women have
A. remained the same. B. increased by 600 percent. C. increased slightly. D. doubled.