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in putting together a benefits package for his firm, george can propose several attractive optional benefits which will include:
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a subset of a population of birds leaves its habitat and colonizes a nearby island. after many generations, the island sinks and the population of birds living on the island returns to its original habitat. which of the following statements most accurately describes the two bird populations?
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darker skin is more prevalent in high-uv areas. dr. nina jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. on what evidence did she base this hypothesis?