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10 questions from this quiz
A digestive system with one opening
Cannot eat and eliminate waste at same time
Jellyfish and flatworms
Allows continuous feeding
No true body cavity; space filled w/ tissue
Flatworms
Fluid-filled space within mesoderm layer
Between mesoderm and endoderm layers
Wave-like contractions pushing food through gut
Triploblastic (having three germ layers)
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