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weekonestudy - 10 Name the structure used by adult...

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Bio 201B Spring, 2007 (Berta) Week 1 Study Questions 1. What replaces the notochord in adult stages of later vertebrates? 2. What is one advantage of the evolution of jaws among vertebrates? 3. Which taxon is the closest relative of vertebrates? 4. What is the original and later function of pharyngeal gill slits in chordates? 5. What is the difference between bone and cartilage? 6. Provide an example of a countercurrent exchange system in vertebrates and explain how it works. 7. List three derived characters that unite all vertebrates? 8. Define the following terms myomeres, claspers, myoglobin, paedogenesis, neural crest cells, notochord, sessile 9. The group to which salmon and trout belong is__________?
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Unformatted text preview: 10. Name the structure used by adult tunicates to capture food? 11. A specialized structure seen in some craniates for detecting vibration in water is called_______? 12. List two synapomorphies for chordates. 13. Name the two major monophyletic groups of fishes? 14. Briefly explain the origin of jaws and evidence to support this. 15. What is the function of the vertebrate kidney?, liver? 16. Hagfish are scavengers or parasites? Be able to distinguish between the two. 17. Defend or refute the statement Chondrichthyes are primitive fish. 18. What are conodonts and what is their significance? 19. Which came first lungs or swim bladders? 20. How does a lobe fin differ from a ray fin?...
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