A nonfiction graphic novel that looks at the eleven systems of the human body. Interest Level: 5-8 Reading Level: 5.7 ATOS Book Level: 6.1 AR Interest Level: MG AR Points: 3 AR Quiz: 177759EN Reading Counts Level: 7.4 Reading Counts Points: 7 Lexile Measure: 920 Lexile Code: GN (Graphic Novel).