siphon
... that a siphon is used by some marine snails for tasting, by some clams for reproducing, and by octopuses for jet propulsion?
... that a <b id="mwCLQ"><a href="./Siphon_(mollusc)" id="mwCLU" rel="mw:WikiLink" title="Siphon (mollusc)">siphon</a></b> <i id="mwCLY">(example pictured)</i> is used by some marine <a href="./Snail" id="mwCLc" rel="mw:WikiLink" title="Snail">snails</a> for tasting, by some <a href="./Clam" id="mwCLg" rel="mw:WikiLink" title="Clam">clams</a> for reproducing, and by <a href="./Octopus" id="mwCLk" rel="mw:WikiLink" title="Octopus">octopuses</a> for jet propulsion?