Chapter 32 ProtoDeuterostomes

Chapter 32 ProtoDeuterostomes - BIOL 2108 Biological...

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BIOL 2108 Biological Principles II – Fall 2009 Campbell & Reece Chapter 32: Intro to Animal Diversity Study Tools: Protostomes or Deuterostomes? Additional Resources: http://www.utm.edu/departments/cens/biology/rirwin/120/b120lab.htm#Animal Be sure to bring your biology textbook and a printout of these instructions to your SI Section! One of the most confusing concepts for new biologists is understanding the difference between protostomes and deuterostomes . Today, we are going to walk through an exercise that will help you remember the difference between these two types of development (pages 660-662 in Campbell). Background: Animals are all multicellular heterotrophic eukaryotes with tissues that develop from embryonic layers. They have traditionally been classified primarily on characteristics related to embryonic development. The characteristics that enable us to classify animals as having protostome or deuterostome development include: 1. Eight-cell to blastula stage a. The alignment of cells during
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This note was uploaded on 05/31/2011 for the course BIO 2108 taught by Professor Ammons during the Spring '11 term at Georgia Southern University .

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Chapter 32 ProtoDeuterostomes - BIOL 2108 Biological...

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