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einsteindude einsteindude
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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.
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Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
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bSharpbSharp
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