Phylum Chordata
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20 Terms
What was the extended gut of a Hemichordate thought to be?
notochord
5 defining characteristics of Phylum Chordata
Dorsal hollow nerve cord, notochord, pharyngeal gill slits, endostyle, postanal tail
Dorsal hollow nerve cord
develops into central nervous system, brain, and spinal cord
Notochord
provides skeletal support/movement to Chordates and is where lots of muscles connect
Pharyngeal gill slits
strains food particles from water in Chordates
Endostyle
mucus secreting tissue in Chordates for filter feeding
Postanal tail
mostly for propulsion in Chordates
What Subphylum of Phylum Chordata shows ALL 5 traits?
Subphylum Cephalochordata
What Subphylum of Phylum Chordata only shows ALL 5 traits in the larval stage?
Subphylum Urochordata
What Subphylum of Phylum Chordata only show traits in its ancestors?
Subphylum Vertebrata
Note 
Flashcards (28)