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use cnidocytes; they keep the cells in a retracted form until they deploy them for securing prey. In keeping with their food capturing function, the collocytes sometimes are called "lasso cells", but as is to be expected of common names, the term is not precise and is variously applied to both colloblasts and cnidocytes. The retracted mechanism is kept coiled in the Ctenophora, as opposed to inside out in the Cnidaria. The Cnidaria evert

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