Biology/Zoology Lab Help. Biology/Zoology Lab Help
A return to a radiate form: Echinodermata
Species Pharyngeal slits Adult dorsal nerve cord Jaws Bony skeleton Eyes Gills Teeth Deuterostome Closed circulatory system Complete digestion system Total
Urochordata
Tunicates
1 0 0 0 0 0 0 0 0 1 0 0 1 3
Placoderms
Jawed fish
1 1 0 1 1 0 1 1 0 1 1 1 1 10
Myxini
Hagfish
1 1 1 0 0 0 0 1 1 1 0 1 1 8
Cephalochordata
Lancelets
1 1 0 0 0 0 0 1 0 1 0 1 1 6
Chondrichthes
Shark
1 1 0 1 1 0 1 1 1 1 1 1 1 11
Petromyzontidae
Lamprey
1 1 1 0 0 0 1 1 1 1 0 1 1 9
Ostracoderms
Jawless fish
1 1 0 0 0 0 1 1 0 1 1 1 1 8
Actinopterygii
Most fish
1 1 0 1 1 1 1 1 1 1 1 1 1 12
Sarcopterygii
Coelocanth
1 1 0 1 1 1 1 1 1 1 1 1 1 12
Echinoderm
Star fish
0 0 0 0 0 0 0 0 0 1 0 0 1 2