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Home Q & A Board Science-Related Homework Help Physics
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einsteindude einsteindude
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9 years ago
Animals that have only a single body opening that serves as both mouth and anus include
A) cnidarians only.
B) cnidarians and flatworms.
C) cnidarians, flatworms, and roundworms.
D) cnidarians and sponges.
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
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bSharpbSharp
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