Fact 1: If a living thing becomes too cold then that living thing will die.  Fact 2: Each living thing, animal or plant, consists of living cells.  Given the two facts above, what will die if they become too cold?
OPTIONS:
 *animal or plant.
 *most organisms.
 *freezing.
 *hydrogen and oxygen.
 *oxygen.
 *Most invertebrates.
 *clouds.
 *cells of organisms.
Answer:
animal or plant