2.4 Phylum: Chordata
Chapter 2: Chapter 2 · Bio Zoology · EN medium
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(G. Chorda –string ) Chordata is the largest phylum with most familiar group of animals, such as fishes, amphibians, reptiles, birds and mammals and less known forms such as lancelets (Amphioxus) and tunicates (Ascidian). All chordates possess three fundamental distinct features at some stage of their life cycle (Figure . ), they are: Muscle segments Notochord Mouth Pharyngeal slits or clefts Anus Muscular, post-anal tail Dorsal, hollow nerve cord
📖 Namma Kalvi 11th Bio Zoology Textbook English Medium · Page 34
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(G. Chorda –string ) Chordata is the largest phylum with most familiar group of animals, such as fishes, amphibians, reptiles, birds and mammals and less known forms such as lancelets (Amphioxus) and tunicates (Ascidian). All chordates possess three fundamental distinct features at some stage of their life cycle (Figure . ), they are: Muscle segments Notochord Mouth Pharyngeal slits or clefts Anus Muscular, post-anal tail Dorsal, hollow nerve cord
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