The Focus On Middle School Biology Student Textbook gives young students a strong foundation in the scientific discipline of biology. Students will learn about the classification of living things (taxonomy), cell structure and types of cells, photosynthesis, plant structures and their purpose, the life cycle of plants, single-celled organisms and how they move and eat, the life cycle of the frog, the life cycle of the butterfly, and ecosystems. The Focus On Middle School Biology Student Textbook contains 10 full-color chapters. Grades 5-8.