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Kenan Fellows
Use of Dichotomous Keys to Identify Stream Organisms
What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of...
US Fish and Wildlife Service
National Conservation Training Center: Endangered Means There's Still Time
This site contains a slide presentation of endangered species. At the bottom of the page are links to a glossary and quiz questions.