HELP INDEX NEXT UP PREVIOUS FEEDBACK ATG Chordate Features
Chordates are grouped together because at some time in their life cycle they possess the following 3 features. First, all chordates have a dorsal supporting cord (notochord). Second, all chordates have a dorsal nerve cord. Third, all chordates have gill slits. Although these 3 features are present in all young or developing chordates, in most adult species they are altered or absent. [BM] {EB}
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