give main characteristics of chordates
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✳️ CHARACTERISTICS OF CHORDATES ARE;
⏩ presence of notochord.
⏩ presence of paired pharyngeal Gill slits.
⏩ presence of post anal tail.
⏩ presence of dorsal hollow nerve cord.
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the characterists are only present during embryonic development in some chordates the notochord provides skeletal support gives the phylum it's name and devlopes in veritable column in vertebrates the drosal hollow never cord developesin the central nervous system i.e, the brain and spin
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