cnidocyte structure and nematocyst discharge

anatomy asexual attached barb biology body bulbshaped called capsule cavity cell cnida cnidarian cnidoblast cnidocyst cnidocyte coiled consists containing contains daphnia diagram digestion discharge each education epithelium feeding green healthy hydra illustration microbiology microorganism mouth natural nature nematoblast nematocyst neuron nucleus nutrition organelle organism predator ptychocyst referred science sperm spin spirocyst structure tentacles tube tubular tubule vegetarian vulgaris