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Summary

Description The lancelet, like all cephalochordates, has a head. Adult lancelets retain the four key features of chordates: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. Water from the mouth enters the pharyngeal slits, which filter out food particles. The filtered water then collects in the atrium and exits through the atriopore.
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Source http://cnx.org/contents/GFy_h8cu@10.53:rZudN6XP@2/Introduction
Author CNX OpenStax

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27 May 2016

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current18:52, 5 July 2016Thumbnail for version as of 18:52, 5 July 2016544 × 498 (151 KB)CFCF

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