October_25_LecNotes - October 25th Lecture Notes. (ppt)...

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October 25 th Lecture Notes. (ppt) Introduction and course information. (ppt) Macroevolution What is the ultimate source of new alleles in a population? Answer = Mutation! This is an example of how a small number of changes can gradually accumulate to form dramatically new structures. o For example, evolution of the eye in Cephalopods was independent of the evolution of eyes in vertebrates. (ppt0 sometimes you can see big jumps in the dramatic appearance of new structures. (ppt) Paedomorphosis – retention of juvenile traits in the adult form. Can you define metamorphosis? [you should be able to ] (ppt0 Know the generalities of change over time… Know when (how many years ago) the origin of the following occurred: o life o plants o animals o primates (ppt) Continental Drift – be able to define and understand an example of: Greta American Interchange & Isthmus of America and the influence of species distribution (see text to learn how these influenced the distribution of felids (big cats). All the southern continents once formed Gondwanaland
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October_25_LecNotes - October 25th Lecture Notes. (ppt)...

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