Contents: What is life -- Thinking scientifically about life -- The Chemistry of life -- Cells -- Cellular architecture -- The Energy of life -- How cells release energy -- Photosynthesis -- Cell division and death -- The Making of gametes -- Animal development -- Human reproductive and developmental concerns -- Transmission genetics -- Chromosomes -- DNA structure and replication -- Gene function -- The Origin and diversification of life -- Darwinian evolution -- Evidence for evolution -- The Forces of evolutionary change -- Classifying life -- Monera -- Protista -- Fungi -- Plantae -- Animalia -- Plant form and function -- Plant life cycles -- Plant responses to stimuli -- Animale tissues -- The Nervouse system -- The Senses -- The Endocrine system -- The Muscoleskeletal system -- The Circulatory system -- The Respiratory system -- Digestion and nutrition -- Regulation of temperature and body fluids -- The Immune system -- Behaviour -- Populations -- Communities and ecosystems -- Biomes -- Environmental concerns -- Appendix.