Platyhelminthes

Card Set Information

Author:
DesLee26
ID:
197138
Filename:
Platyhelminthes
Updated:
2013-02-01 09:41:16
Tags:
BIO 220
Folders:

Description:
Chapter 41
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user DesLee26 on FreezingBlue Flashcards. What would you like to do?


  1. True or False:
    They are less elaborate organisms than cnidarians.
    • False: more elaborate
    • Wall is much thicker; many more cells; nerve net
  2. Gastrovascular cavity
    • grey material in picture
    • -- it is branched to allow accessà increase surface area= complexity of body needs branching for total access of body
  3. Why do they have a branched cardiovascular system?
    to give access for all parts of body
  4. Explain mouth.
    Mouth is on undersurface; from the mouth it can extend the pharynx (from the mouth)
  5. Explain the cells that line the gastrovascular cavity.
    can release digestive enzymes on to prey OUTSIDE of the body
  6. Explain extracellular digestion.
    • partially digests the prey
    • sucks up the pieces and the pieces are taken in by phagocytosis to the cells of the gastrovascular cavity where digestion is completed intracellulary

What would you like to do?

Home > Flashcards > Print Preview