Guide your young scientists in reviewing basic animal processes including digestion and reproduction. Students review the stages of metamorphosis and the different types of body symmetry. This worksheet has 8 matching, 6 true or false, 4 multiple choice, and 4 short answer questions. Part 3 seems to indicate a reflection on a previously-completed lab, during which students examined worms in different environments. Students finally weigh in on the controversy of zoos.