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Asked by priyadas | 30th Jan, 2009, 05:29: PM
Chordates are animals that possess a rod of flexible tissue called notochord. Chordates have a notochord and pharyngeal gill clefts at some point in their life. Chordates include the vertebrates, but they are not the same as vertebrates.
Nonchordates are the organisms that do not have a notochord. These do not have pharyngeal gill slits.
2 of the questions have been answered. Please post each of the remaining questions individually.
Answered by | 30th Jan, 2009, 08:41: PM
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