╨╧рб▒с;■  ■                                                                                                                                                                                                                                                                                                                                                                                                                                                   ¤   ■   ■    ■    )!"#$%&'(■   *+■                                                                                                                                                                                                                                                                                                                                                   R        CompObj    jWordDocument             01Table             ■                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ■       └FMicrosoft Word Document MSWordDocWord.Document.8Ї9▓qA@Є б&\`Є&Default [ `ё  CopymH CJ(]@( Default SSCJ(^`ё( Default TB,_`ё",Header$5CJ``ё2Body(a`ёB(Footer$6(b`ёR(FootnoteCJ0c@a0Footnote IndexH*Я*    Ёцh°>  ` >>ббЯ@GРTimes New Roman5РSymbol3РArial;РHelvetica"AМ╨h*Л&+Л&Г!е└┤┤А0Fertebrates have jaws. Why are jье┴G ┐>bjbjО┘О┘ !*ь│ь│Я      ]░░░░░░░─────,Ё$─IЄ        4444444;Ї/4░     //░░       ░ ░              ░░  рИХ·╝──* SHAPE OF LIFE 8:  Bones, Brawn and Brains CHORDATA Name Period___ Add to your answers after you read C+H and the MBCB, take notes, and watch Shape of Life. 1. What and when was Pikaia? 2. Describe and / or draw the major systems of Amphioxus. This defines Chordata, our phylum. 3. Compare the genetic make up of Amphioxus with the genetics of vertebrates. 4. What characteristic of the earliest vertebrates helped them dominate their invertebrate neighbors? 5. Describe a tunicate. How do deep sea tunicates trap their food? What subphylum do tunicates belong to? 6. Describe a salp. How do salps get their food? What subphylum do salps belong to? 7. Describe a larvacean. How do larvaceans get their food? What subphylum do larvaceans belong to? 8. Two main types of the subphylum Vertebrata are the fish and tetrapods. Describe the body type of each. 9. What are the seven classes of Vertebrata? 10. Almost all vertebrates have jaws. Why are jaws important? 11. What natural disaster wiped out half of the Earth s animals 65 million years ago? (include this in the time line you complete later) 12. What are the advantages of having an internal skeleton as compared to an external skeleton that is shed order to grow? 13. What is the function of the notochord? 14. Why can t an ant get as big as an elephant? 15. What happened during evolution that led to the appearance of jaws and skulls in chordates? 16. How can you investigare growth in an extinct animal? How can you investigare rate of growth in an extinct animal? Reading in C+H Define: the phylum Chordata, subphylum Urochordata and subphylum Cephalochordata. Describe and give an example of: sea squirts, larvaceans and salps. Describe a lancelet. 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