ArthropodaTREE.jpg, 13K
Zoology 250 (2004)

ARTHROPODA (I): General features

( Arthropoda study images;
click on tree to see full cladogram)


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  • 1) The Arthropoda is the largest animal phylum (more than 750,000 spp)

  • 2) The semi-rigid, jointed exoskeleton (cuticle) must be molted

  • 3) Jointed limbs exhibit a tremendous diversity of form:
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    Copyright (c) 2004 by A. Richard Palmer. All rights reserved.
    (revised Feb. 1, 2004)