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• 1. Characteristics and classification of living organisms; 2. Cells; 3. Movement into and out of cells; 4. Biological molecules; 5. Enzymes; 6. Plant nutrition; 7. Human nutrition; 8. Transport in plants; 9. Transport in animals; 10. Disease and immunity; 11. Respiration and gas exchange; 12. Coordination and response; 13. Excretion and homeostasis; 14. Reproduction in plants; 15. Reproduction in humans; 16. Chromosomes, genes and proteins; 17. Variation and selection; 18. Organisms and their environment; 19. Human influences on ecosystems; 20. Biotechnology and genetic modification.

Select Guide Rating

• 1. Characteristics and classification of living organisms; 2. Cells; 3. Movement into and out of cells; 4. Biological molecules; 5. Enzymes; 6. Plant nutrition; 7. Human nutrition; 8. Transport in plants; 9. Transport in animals; 10. Disease and immunity; 11. Respiration and gas exchange; 12. Coordination and response; 13. Excretion and homeostasis; 14. Reproduction in plants; 15. Reproduction in humans; 16. Chromosomes, genes and proteins; 17. Variation and selection; 18. Organisms and their environment; 19. Human influences on ecosystems; 20. Biotechnology and genetic modification.

Select Guide Rating

• 1. Characteristics and classification of living organisms; 2. Cells; 3. Movement into and out of cells; 4. Biological molecules; 5. Enzymes; 6. Plant nutrition; 7. Human nutrition; 8. Transport in plants; 9. Transport in animals; 10. Disease and immunity; 11. Respiration and gas exchange; 12. Coordination and response; 13. Excretion and homeostasis; 14. Reproduction in plants; 15. Reproduction in humans; 16. Chromosomes, genes and proteins; 17. Variation and selection; 18. Organisms and their environment; 19. Human influences on ecosystems; 20. Biotechnology and genetic modification.