Problem Set 1

Problem Set 1 - Nicholas Huynh Anthropology 5 Fall 2009...

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Nicholas Huynh Anthropology 5 Fall 2009 Problem Set # 1 1. The theory of evolution by natural selection is composed of six logical steps of theory. The first is that the ability of a population to expand is infinite. However, the second step notes that the number of organisms in nature tends to be stable instead of exponential due to the limitations of resources. The third step requires that many individuals must fail to reproduce. The fourth step states that some individuals will possess traits that enable them to survive and reproduce more successfully than others in the same environment. The fifth step says that offspring resemble their parents—successful parents pass on their advantageous traits whereas unsuccessful parents do not pass on their disadvantageous traits. The sixth and final step notes that advantageous traits become more common over the generations. 2. A. The size of the beaks of the Galapagos finches was the factor of change in the Grant experiment. B. Survival was affected by beak depth variation on the island. Birds with deeper beaks were able to process large, hard seeds more easily than birds with shallower beaks were. Deep-beaked birds usually concentrated on obtaining large seeds, while shallow-beaked
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Problem Set 1 - Nicholas Huynh Anthropology 5 Fall 2009...

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