biology/zoology lab help
strength
labb.docxA 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 |
