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book Biology 11th Edition by Cecie Starr ,Ralph Taggart cover

Biology 11th Edition by Cecie Starr ,Ralph Taggart

Edition 11ISBN: 978-0495106784
book Biology 11th Edition by Cecie Starr ,Ralph Taggart cover

Biology 11th Edition by Cecie Starr ,Ralph Taggart

Edition 11ISBN: 978-0495106784
Exercise 5
The animal groups called flatworms, roundworms, and annelids all include species that are parasites of mammals, whereas the groups called sponges, cnidarians, mollusks, and echinoderms do not. Propose an explanation for the difference.
Explanation
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All flatworms have two-sided symmetry an...

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Biology 11th Edition by Cecie Starr ,Ralph Taggart
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