This set includes 4 versions of the quiz (A, B, C, & D) in order to make it difficult for students to cheat. On each version the selections (numbers, letters, etc.) have been rearranged. A pretest, post-test, notes sheet, study guide, and answer keys are included. Concepts addressed: cell theory, discovery of cells, scientists (Hooke, Van Leeuwenhook, Schleiden, Schwann, & Virchow), unicellular vs. multicellular organisms, & microscopes.