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5 Cards in this Set

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three structures in the chordata phylum
Notochord

hollow nerve cord

gill slits
structure in the chordata phylum:

a stiff rod like structure which is like a skeleton inside the body
notohorddd
chordata phylum

What is a hollow nerve cord
runs along animal's back and front end and is enlarged

runs along animal's back dkssssssssssssdsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddssddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddlllllllllllllll r
gill slts
formduring early stages of ddevelopment (in human embryo)
five (5) classes of vertebrates
fish
amphibians
reptiles
mammals
birds