Biology 1001A Lecture Notes - Lecture 3: Intelligent Design, Speciation, Natural Selection
10 May 2016
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Document Summary
Most of other species evolved from other animals. Despite public support for intelligent design (id-young-earth creationism), the 2005. Dover trail established that id does not belong in science classes. It is not a scientific theory, but has not been falsified. What is the theory of evolution? (descent with modification from a common ancestor) Allele frequencies in a population change from one generation to the next. All life is related through common ancestry. Traits that humans and animals have in common with each other (homologies) Bacteria, human, and animals have genetic material stored as dna. Species that are more closely related, the more homologies they share. Lineages diverge (speciate) into multiple daughter lineages. Evolution is variation not transformational (populations evolve; individuals do not) . Small changes between generations: transitional forms between ancient and modern species. Natural selection explains much (but not all) evolutionary change. Evolution can be more strongly supported by evidence of telling imperfection than evidence of perfections .
