Notes part 2 - early vertebrae Skeletons were composed of...

This preview shows page 1 out of 1 page.

Unformatted text preview: early vertebrae Skeletons were composed of Unmineralized cartilage .\ - later replaced by mineralized cartilage . Gnathosomes are vertebrates that have_ jaws . jaws evolved from Skeletal rods associated w| anterior gill shits -- ( Sharks )| 3 groups ) . Chondrichthytes - req. moremet Survive. _ Skeleton of cartilage - traces of bone - largest are filter feeders . Lo reproduc by excreting fertilized eggs 21 Actino ptergii _ bone fish ) ray fin fishes - have swim bladder + oper culum .` - reproduce by external fert. ( ovipary 3\ Sacro - Lope fin fish - distinct bones + muscles in pectoral + pelvicfins. coelacanth lungfishes...
View Full Document

  • Summer '08
  • Huddleston,M
  • Shark

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern