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Science comes to life: The science of living things; Being alive; The biology lab -- Life and the cell: Cells, the building blocks of life; Energy and cells; Genetics and the secret code of life; Simple organisms -- Plants, the food makers: The study of plants; Classes of plants; Plants at work, roots, stems, and leaves; The life cycle of seed plants -- Animals, the food hunters: Invertebrates, animals without backbones; The cold-blooded vertebrates; The warm-blooded vertebrates -- Humans, the big brain mammals: The sense organs; Food, nutrition and digestion; Movement, bones and muscles; Life support, oxygen and blood; Body messengers, neurons and hormones; The reproductive system -- Living together on earth: Ecology, the web of life; The cycles of life; Behavior of living things; Resources for life; Evolution, changes in life over time.
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