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Like all animals; thru their food. They are filter feeders, if that helps. The water carries the little bits of food in their body along with the oxygen they need.
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Related questions
Is coral a cnidarian?
Yes, coral is a cnidarian.
How do put cnidarian in a sentence?
On the field trip, I saw a "cnidarian"when we went on a submarine.**************************A jellyfish is a basic example of a cnidarian.
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Is squid a Cnidarian?
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What a Cnidarian?
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Is an earthworm a cnidarian?
No it is not. :)
Where does the name Cnidarian come from?
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Is a dolphin a cnidarian?
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