Some ctenophores, molluscs, and flatworms eat hydroids bearing nematocysts, then store and use these stinging structures for their own defense Widespread.
SIPHONOPHORES By Emma Gregory and Seth Brooks. WHAT ARE SIPHONOPHORES? Siphonophores are a type of plankton consisting of many different zooids (individual.
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Sponges, Cnidarians and Platyhelminthes BIOL 1407.
