knopper galls
...that knopper galls, caused by the eggs laid by gall wasps, develop as a chemically induced distortion of growing acorns on Pedunculate Oak trees?
...that <b id="mwC0c"><a class="mw-redirect" href="./Knopper_gall" id="mwC0g" rel="mw:WikiLink" title="Knopper gall">knopper galls</a></b>, caused by the eggs laid by <a href="./Gall_wasp" id="mwC0k" rel="mw:WikiLink" title="Gall wasp">gall wasps</a>, develop as a chemically induced distortion of growing <a href="./Acorn" id="mwC0o" rel="mw:WikiLink" title="Acorn">acorns</a> on <a class="mw-redirect" href="./Pedunculate_Oak" id="mwC0s" rel="mw:WikiLink" title="Pedunculate Oak">Pedunculate Oak</a> trees?