Classification and Cell Biology - Characteristics of Living Organisms, Biological Classification, Cell Types, Specialized Cells Molecular Biology and Transport - Biological Molecules, Enzymes, DNA, Diffusion, Osmosis, Active Transport Nutrition and Metabolism - Plant Nutrition, Photosynthesis, Human Diet, Digestion, Absorption Transport and Circulation - Xylem and Phloem in Plants, Water Transport, Circulatory System, Heart and Blood Vessels Health and Immunity - Pathogen Transmission, Immune Response, Respiration, Gas Exchange Nervous and Hormonal Control - Nervous System, Sense Organs, Hormones, Coordination in Plants