![VERTEBRATES All vertebrates share 4 characteristics: ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Fish notes
- 1. Warm up What are some things that are different between crayfish and regular fish? What are some things dinosaurs and humans have in common?
- 6. FISH NOTES
- 9. Circulatory System Closed circulatory system with 2 heart chambers a.) ATRIUM 1.) Collects blood from body b.) VENTRICLE 1.) Pumps blood to gills then body
- 10. Respiratory System A. Gills a.) exchange carbon dioxide and oxygen from water
- 11. A. Jawless fish A. Characteristics Skeleton of cartilage No scales, jaws, teeth Long slimy tube body Ex: Lamprey and Hagfish
- 12. Lamprey
- 15. Hagfish
- 16. Warm up What does ectothermic mean? What does endothermic mean?
- 17. B. Cartilage fish A. Characteristics Skeleton made of cartilage Excellent senses-sight and smell Store oil in liver to float Cannot stop swimming or will suffocate! Examples are sharks, skates, and rays
- 18. Skarks
- 19. live bearing kite-shaped whip-tail with spike larger Rays
- 20. egg layers fleshy tails no spikes Skates
- 21. C. Bony fish A. Characteristics 1.) Skeleton of bone 2.) Swim bladder to float 3.) Three groups a.) Lobed - Heavy jaws and limblike fins b.) Lung - Gills and lungs c.) Ray-finned - Thin bony spines called rays connected by thin skin
- 22. Lobed Fish The Coelacanth
- 23. Lung Fish
- 24. Ray-finned Fish
- 25. Fish Buoyancy… Look at the 2 balloons. Describe what you see happening and determine which represents the bony fish and which represents the cartilage fish. Be prepared to explain your conclusion.
- 27. Turn to your neighbor and discuss these questions.
- 28. If you know the answers or understand them now, write an explanation.
- 29. If you are still confused, raise your hand and I will come around and explain.