Cell Theory, Living Things, & Biotic and Abiotic Objects review. 20 pages includes 10 pages practice work and 10 pages detailed answers. Information in packet with practice so no textbook is needed. Good for classwork, centers, homework, and independent practice. Page 1. Review and practice of Cell Theory, characteristics of life, biotic factors, and abiotic factors. Page 2. Review and practice of the scientists linked to the Cell Theory. Page 3. Review and practice of prokaryotic vs. eu