Biology Chapter 12 Discussion Questions

Biology Chapter 12 - 2 Tube feet are used for locomotion They are also used for feeding and gas exchange This system is named the water vascular

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Drew Rasmussen Biology 192 Lab Matt Schmasow April 13, 2011 Chapter 12 Pre-lab Questions Chapter 12 1. What is the most notable difference between dueterstomes and protostomes? 2. What do echinoderms use to move? What is the name of the system used? 3. What are pedicellariae? What are they used for? 1. The main difference between dueterstomes and protostomes involves their different patterns in embryonic development.
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Unformatted text preview: 2. Tube feet are used for locomotion. They are also used for feeding and gas exchange. This system is named the water vascular system. 3. Pedicellariae are small wrench or claw shaped forceps located on echinoderms. Pedicellariae are poorly misunderstood by scientists, but it is thought that they may be responsible for keeping the organism free of algae....
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This note was uploaded on 01/18/2012 for the course BIOL 191L taught by Professor Dr.dottydouglass during the Fall '10 term at Boise State.

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