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 * //Arthropod Phylum: Arthropoda [[image:crayfish.jpg width="182" height="137" align="right"]] //**

 Introduction:

 * The word arthropoda means "jointed foot."
 * There are more than a million different species of arthrodods, making them the largest group of animals!!
 * There are 5 major groups (classes) of arthropods.
 * Arthropods play an important role in our environment.

What you'll learn:
 * Determine the characteristics that are used to classify arthropods.
 * Explain how the structure of the exoskeleton relates to its function.
 * Distinguish between incomplete and complete metamorphosis.