She felt her 'biological clock' ticking away and wanted to have a baby as soon as possible.
an adopted child who finally found her 'biological' mother
She practices 'biological control' in her gardening.
(..) ...and Three Waters. The question that's kept me up for the last hours... ...the question I have to ask, is: What if the worst... ...the most horrifying biological attack in this country's history... ...was not the work of religious extremists? Well, I don't understand. We know it was. (..)2005 V for Vendetta