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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Dervied Characters of Chordata
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1) Notochord (Skeletal Support)
2) Dorsal Hollow Nerve Cord 3) Pharyngeal Slits/ Clefts 4) Muscular Post-Anal Tail |
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Tunicates
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-Sea Squirts
-In thru mouth, food filtered, water shot out thru exit |
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Lancelets
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Marine suspension feeder
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Craniates
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-Chordates with a head
-Neural crest (Collection of cells that evolve into variety of structures including teeth, neurons, and eyes) |
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Progression of Chordates
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1) Notochord
2) Brain 3) Head 4) Vertebral Column (backbone, spine) 5) Jaws 6) Lungs 7) Lobed fins 8) Legs 9) Amniotic egg 10) Milk |
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Hagfishes
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-Jawless and no vertebrae
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Lampreys
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-Jawless
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Gnathostomes
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-Jaws (from skeletal support on pharyngeal slits)
-Enhanced Senses -Stronger Endoskeleton -Paired Appendages |
Sharks
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Ray-finned fish
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-Swim Bladder
-Bony gill covers -Manueverable fins with long rays |
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Lobe finned fish
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Tetrapod limb skeleton
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