Are you ready to teach biology? Pass your certification exam the first time with this comprehensive guide that concisely reviews the two part GACE Biology test. Aligned with current state standards, this guide includes the major subcategories of Cell Structure and Processes; Heredity and Evolution; Characteristics of Organisms; Ecosystems; and Characteristics of Science. From recognizing chemical elements to analyzing human effects on the ecosystems, this study prep covers all corresponding competencies and skills, providing you with a complete review. Test your knowledge with the 122-question sample test.