BIOL 1001 Study Guide - Final Guide: Microevolution, Melanin, Macroevolution
4 Apr 2017
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Describe key adaptations that distinguishes humans from non-human primates, as well as traits formerly attributed only to humans that are found in other species: describe an example of natural selection in humans. One of the physiological changes that different groups of human beings have made involves the ability to digest cow"s milk. In regions where cattle are not raised, the human population is often lactose intolerant, lacking the enzyme to break down the milk. However, in regions where cattle are grown domestically and their milk is used as a chief part of the food supply, those humans as a whole produce the enzyme needed to digest milk. Explain why humans are more correctly described as sharing common ancestry with chimpanzees", rather than the incorrect descended from chimpanzees" (on exam) Molecular data indicates that both humans & chimpanzees have evolved since the divergence b/t the two occurred. We are all modern species that have followed different evolutionary paths.
