Anthropology 5 problem set 5

Anthropology 5 problem set 5 - Anthropology 005...

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Anthropology 005 Introduction to Physical Anthropology Problem Set # 5: Distinctive and no-so-distinctive traits of humans 1. “If it’s good, it will spread.” Is the preceding phrase is an accurate or inaccurate description of evolution by natural selection? Explain why or why not. This is an accurate description of evolution by natural selection because the trait that benefits and fits the environment the best then it will be looked upon. Natural selection is a process which looks at organisms that are best adapted to their environment. Those organisms will tend to survive and transmit their genetic characteristics in increasing numbers to the successful generation. While those that are less adapted tend to be eliminated. 2. Use both words and the trait space to define cooperation, selfishness, spite and altruism in evolutionary terms. In the chart, individuals are placed on the x axis and neighbors are placed on the y axis meaning when and if an individual gives something to someone else, they have to give something up. The further they are away from the positive aspects of neighbor, the more selfish they are because they don’t want to share or give. The further they are away from the positive of individual, the more spiteful they are. Neighbor - + + + altruistic cooperative Individual - - + - spiteful selfish 3. Explain why kin selected behaviors could be accurately described as “phenotypically altruistic but genetically selfish.” This is because of the altruistic trait. When looking at the image below it illustrates the behavior of the cost and benefits. If I give you something, it would be out of my kindness but it would cost me. Therefore, I have to give something up to get something else. Kin selection is a gene that gets into the next generation and causes it to have an effect on the phenotype. The gene that gets passed to the offspring does not have a limit. An example is if there
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This note was uploaded on 11/11/2009 for the course ANTH 5 taught by Professor Gaulin during the Fall '07 term at UCSB.

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Anthropology 5 problem set 5 - Anthropology 005...

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