Phylum Chordata
The notochord · Four sub-phyla · Five vertebrate classes
State the main features of chordates
Name the four sub-phyla of Chordata
Tell cold-blooded from warm-blooded animals
Tell oviparous from viviparous animals
Recognise the five vertebrate classes
Notochord between nerve cord and gut
Gill openings on the pharynx in the embryo
Hollow nerve cord along the back
Skeleton covered with muscles
Closed circulatory system
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