Review notes: Bio 100 Fall 2002/Dennis Wilson

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There are about 1.75 million described species in science. Yet biologists estimate there may be from 30-100 species of organisms on earth. How can we catalogue all of lifes diversity?

Biodiversity and Life on Earth.

Survey of the 5 kingdoms:

• Characteristics that place organisms into each kingdom
• An example of several named organisms from each kingdom and an understanding of their unique biology

How to construct and use a dichotomous key.

Which types of characteristics should be used when constructing a dichotomous key?

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