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Comparing digestive systems in invertebrates

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Comparing digestive systems in invertebrates

Postby jeffding » Wed Apr 29, 2009 3:55 am

Compare the digestive systems of planarian to that of Ascaris, and how does a planarian's digestive system resemble a cnidarian(jellyfish)?
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Postby zoogeographer » Thu Jul 16, 2009 3:33 am

Try to find a general zoology textbook by Tracy Storer (McGraw-Hill). A good librarian can direct you to a source. Any edition will do for your purposes.

Good Luck, and happy learning.
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Postby freshbiology » Sun Jul 26, 2009 4:39 pm

Digestive system of planarian is incomplete with a single opening for ingestion as well as egestion.
Digestive system of Ascaris is complete with mouth at one end and anus at the other.
Digestive system of planarian resembles that of a cnidarian because both are blind, bag like with a single opening and few other similarities.
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