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Paradigm Online Writing Assistant: Occasions for Thesis/support Essays
The basic thesis/support pattern promotes clear, systematic thinking on a single subject and can, therefore, be helpful whenever you want to set forth ideas and facts in an efficient, orderly way.
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Bio Web Evolution: Homepage
This site from BioWeb Evolution was originally created as a ThinkQuest entry, and it has some good basic information about evolution. This page is on fossils and geologic time.