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Name: Greta O.
Status: educator
Age: 40s
Location: N/A
Country: N/A
Date: Saturday, June 01, 2002
Question:
Why is the crayfish is used as a model invertebrate and arthropod?

Replies:
Some reasons...They are cheap, they are not too big and not too small and they are a common example, along with the earthworm, of the invertebrates.

Peter Faletra Ph.D.
Assistant Director
Science Education
Office of Science
Department of Energy

I am not a formal educator so I do not know a lot about educational techniques, but I am guessing that it is because they are large, so structure is easy to see, and common and easy to find.

J. Elliott

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