{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

com - Bio 121 Unit 13 1 Animal Development Development...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Bio 121 Unit 13 1. Animal Development Development consists of three changes: cell division, morphogenesis, and cell differentiation Morphogenesis- the complex processes leading to the final shape of the organism and the arrangement of its parts Cells -> Tissues-> Organs-> Organ Systems-> Organisms 2. Starfish Development GO OVER p. 351-354 Cells divide up until 16 cell stage- all the same size Blastopore- invagination that appears during Gastrula stage ->Archenteron Archenteron- primitive gut 3. Frog Development GO OVER p. 358-360 Cells dividing are not the same size Animal hemisphere- pigmented yolk Vegetal hemisphere- unpigmented yolk Gray crescent- near junction between animal and vegetal hemispheres Blastocoel- forms between central region of the blastoderm and the yolk Yolk plug - the remaining patch of endodermal cells that is created during the formation of the ventral lip of the blastopore Ectoderm, endoderm, mesoderm form in gastrula stage
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

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