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Name the ье┴G ┐bjbjО┘О┘ !*ь│ь│Н      ]░░░░░░░─────,Ё$─IЄ        4444444;Ї/4░     //░░       ░ ░              ░░  рИХ·╝──* SHAPE OF LIFE 3: The First Hunter PLATYHELMINTHES Name Period___ Add to your answers after you read Milne and the MBCB, take notes, and watch Shape of Life. pre-questions A. Flatworms are not the only kind of worms. Name as many others as you can. B. What does the term  worm mean? C. What are some benefits of having a worm shaped body? D. What other living organisms, or parts of organisms are worm shaped? 1. How can paleontologists find fossils of flatworms if flatworms do not have bones? 2. In what ways are flatworms more complex than cnidarians? 3. What is it about the flatworm body plan that makes it a good hunter? 4. What are the advantages of having a bilaterally symmetrical body? 5. What are the advantages of stereo senses? 6. What are cilia and how do flatworms use them? What other animals use cells with cilia or flagella? 7. List four different habitats where flatworms live. 8. Where is the mouth of a flatworm? 9. Name the special genes that control whole sets of other genes. 10. What do we call an animal that produces both eggs and sperm? What are the advantages and disadvantages of such a design? 11. What are some special adaptations of parasitic flatworms? e.g.. tapeworms 12. How do genes control development and the formation of a body plan? 13. How are we like flatworms? CONCLUSION Phylum Platyhelminthes " defining body plan " movement and support " eating and digestion " senses and nervous system " reproduction Milne Reading for MBCB pps 25-28 and Shape of Life 3, Platyhelminthes and 4, Annelida. intro. p. 160 Why are so many unrelated marine animals worm shaped? Fig. 7.1 How closely are different phyla of worms related? Read about the phylum Pogonophora. Read page 162 and see Fig. 7.8 for: FLATWORMS P. Platyheminthes and NEMATODES P. Nematoda. 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