question: Which are essential for all life on earth?
choices.text: liverworts glass multinucleated cells male gametes the ovaries cell division helium hydrogen and oxygen
choices.label: A B C D E F G H
formatted_question: Which are essential for all life on earth? (A) liverworts (B) glass (C) multinucleated cells (D) male gametes (E) the ovaries (F) cell division (G) helium (H) hydrogen and oxygen