| Document Date: 2004-09-09 16:30:40
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Company Vertebrates / / Event Extinction / / Facility Blood vessels Rib Neural arch Centrum FIGURE / / IndustryTerm excretory systems / diverse / sensory systems / food particles / microscopic food particles / body systems / chemicals / chordate / food options / food / / NaturalFeature Arctic seas / / Position Major / flat head / distinct head / distinct and well-differentiated head / flat head / and eyes on the upper surface / distinguishable head / / Technology Single-loop / /
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48 Vertebrates Concept Outline 48.1 Attaching muscles to an internal framework greatly improves movement.