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Write your homework in your assignment book.

Write your homework in your assignment book. Put all your belongings except your pencil on the floor. Warm up. Take out the slips of paper from the envelope… As a group, sequence the invertebrate phyla based upon your knowledge and context clues in the writing.

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Write your homework in your assignment book.

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  1. Write your homework in your assignment book. Put all your belongings except your pencil on the floor.

  2. Warm up • Take out the slips of paper from the envelope… • As a group, sequence the invertebrate phyla based upon your knowledge and context clues in the writing.

  3. 1. What is the simplest invert phylum? 2. What is the most complex invert phylum? 3. What is the most complex form of symmetry? What is the name of the front portion of the crayfish? 5. What is 1 question you still have about inverts?

  4. QUIZ 1-14=1 point each 15-21=2 points each 28 points total

  5. QUIZ Turn your answer sheet over. Explain why your answer is wrong for any that you answered incorrectly. Explain how much/how you studied.

  6. What is the difference between an invertebrate and a vertebrate? From our matter unit, what does ectothermic mean? What does endothermic mean? Warm up

  7. VERTEBRATES • All vertebrates belong to the phylum CHORDATA: • Tunicates • Lancelets • Vertebrates

  8. VERTEBRATES • All chordates share 4 characteristics: • Notochord • Hollow nerve cord • Pharyngeal gill pouches • Tail

  9. Why can we often find fossils of animals that are vertebrates?

  10. Vertebrate Family Tree…

  11. Your table will make a book about the vertebrates. • You will each have a page (amphibians, reptiles, birds, mammals). • Each animal group will meet to gather research for the page. • I will make a sample page for fish. • Your grade will be individual, but the pages will be compiled. • We will peer review the completed books. • Books will be used to complete our notes. Vertebrate Animal Book

  12. Warm up...Compare and Contrast Endotherms & Ectotherms

  13. FISH NOTES

  14. Fish Family Tree… • Live in nearly all water environments • Simplest vertebrates • Largest group of vertebrates

  15. Characteristics: • Ectothermic: temp controlled by surroundings • Fins: for moving/steering • Scales: cover and protect body • Lateral line: row of tiny sense organs along the body; detects vibrations

  16. Respiratory System A. Gills a.) exchange carbon dioxide and oxygen from water

  17. 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

  18. A. Jawless fish • A. Characteristics • Skeleton of cartilage • Notochord but no backbone • Jawless mouth with no teeth • Ex: Lamprey and Hagfish

  19. Lamprey

  20. Hagfish

  21. 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

  22. Skarks

  23. live bearing kite-shaped whip-tail with spike larger Rays

  24. egg layers fleshy tails no spikes Skates

  25. 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

  26. Lung Fish

  27. Ray-finned Fish

  28. Lobed Fish Creature from the Black Lagoon Why are the coelacanth dying? These animals are called “living fossils” by many scientists. Why do you think they have been given this title? Why are “living fossils” important to understand the animal kingdom?

  29. Lobed Fish A Living Fossil… These animals are often called “living fossils”. Why do you think they have been given this title? Be specific and give details. Why are these fish significant? Why are “living fossils” important to understand the animal kingdom?

  30. 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.

  31. Text check… Find the 2 questions you wrote down after reading chapter 3 section 1. Turn to your neighbor and discuss these questions. If you know the answers or understand them now, write an explanation. If you are still confused, raise your hand and I will come around and explain.

  32. Warm up • What are some things that are different between crayfish and regular fish? • What are some things dinosaurs and humans have in common?

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