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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the 3 Phylum of deuterostoma |
Chordata, Hemichordata, and Echinodermata |
Acorn worms and star fish |
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What is the difference between deuterostoma and protostoma |
Anus or mouth develop first in embryo |
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What makes hemichordata similar to chordata |
Pharyngeal slits |
Breathing |
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Echinodermata had what types of symmetry |
Radial as adult and bilateral as larvae |
Adult and larvae |
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What are the subphylums of chordata |
Urochordata, cephalochordata, and vertebrata |
U C and V |
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What are the 5 features of chordates |
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What is the nerve cord made of and what process forms it |
Ectoderm via invagination |
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What is the endostyle and what does it do |
Glandular groove on the floor of pharynx secretes mucous and helps iodine metabolism |
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Cephalochordata lack a |
Differentiated brain, sense organs and a heart |
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Ascidiacea are...? |
Urochordata that start as swimming larvae that grow into tunicates (sea squirts) |
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What are the 3 ways to study origins of vertebrates |
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Few chordates fossils were found in this time period |
In the Cambrian 540-520 MYA |
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Cyclostomes are? |
Hagfish and lampreys |
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Craniates include |
All general vertebrates even those that lack vertebrae |
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Gnathostomes are |
Jawed vertebrates |
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Agnatha are another name for |
Cyclostomata or jawless fishes |
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What are the 5 features |
Manditory: Vertebral column, head (cranium and brain), and sometimes: jaws, paired limbs and cleidoic eggs |
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What is the centrum dorsal neural arch and ventral hemal arch |
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