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Date: 2011-09-15 19:26:53Paleontology Evolutionary biology Chordates Lagerstätten Cambrian Cambrian explosion Maotianshan Shales Animal Pikaia Biology Zoology Phanerozoic | Microsoft Word - cambrianexpl.docAdd to Reading ListSource URL: www.evolution-facts.orgDownload Document from Source WebsiteFile Size: 41,55 KBShare Document on Facebook |
AP STATE COUNCIL OF HIGHER EDUCATION Zoology course structureunderCBCS (w.e.f, Revised) YEAr semester paper TITLE Marks credits i I i Biology of Non-chordates 100 03DocID: 1tV3Z - View Document | |
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PHYLUM HEMICHORDATA Hemichordates are worm- like animals living in tubes in the bottom mud or among rocks or masses of plant material. At one time they were considered to belong to the same phylum as we belong (Phylum ChDocID: X7ok - View Document | |
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48 Vertebrates Concept Outline 48.1 Attaching muscles to an internal framework greatly improves movement.DocID: QBvE - View Document |