ARTHROPODA (II): General features (cont.) (Crustacea study images,
other arthropod study images;
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b) the image is actually a composite of many separate spots of light
c) multiple evolutionary origins seem likely because details of ommatidium form vary among groups
b) terrestrial (depend upon diffusion and some inhalation/exhalation):
Copyright (c) 2007 by A. Richard Palmer. All rights reserved.
(revised Jan. 28, 2007)