Jellyfish, anemones, and corals, are some examples of animals that belong to the phylum Cnidarian. They are all radially symmetrical, which means their body extends out like a bicycle spoke. A perfect example of this is a starfish. All cnidarians have tentacles with stinging cells so that they can catch prey for food.
Oceanic Research Group, Inc., (2007, July). Cnidarians: simple animals with a sting!. Retrieved from http://www.oceanicresearch.org/about/contact_org.htm
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