Science Ages 14-18 ● Media ready

High school biology

Learn high school biology using videos, articles, and NGSS-aligned practice. Explore the fundamentals of cells, organism growth and development, photosynthesis and cellular respiration, molecular and classical genetics, natural selection and evolution, biodiversity and human impacts, and ecology.

11 units 58 lessons 54 videos 4 on CDN

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Unit 2 Ecology and natural systems

1 Organization of natural systems Free 2 video(s) ● 2 The distribution of life Free 3 An organism's niche Free 2 video(s) ● 5 Population growth and carrying capacity 🔒 Pro 1 video(s) 6 Activity: Why are human-shark interactions increasing around Cape Cod? 🔒 Pro 8 Interactions in communities 🔒 Pro 2 video(s) 9 Biodiversity and human impacts: Unit test 🔒 Pro

Unit 3 From cells to organisms

1 The cellular basis of life 🔒 Pro 1 video(s) 2 Prokaryotic and eukaryotic cells 🔒 Pro 1 video(s) 4 Cell structure and function 🔒 Pro 5 From cells to organisms 🔒 Pro 2 video(s) 7 Human body systems 🔒 Pro 4 video(s) 8 Homeostasis 🔒 Pro 1 video(s)

Unit 4 The cell cycle and differentiation

1 The cell cycle and mitosis 🔒 Pro 2 Regulation of the cell cycle and cancer 🔒 Pro 4 Fertilization, growth, and cell differentiation 🔒 Pro 1 video(s) 6 Activity: How do stem cells give rise to the diverse cell types that make up the human body? 🔒 Pro

Unit 5 Energy and matter in biological systems

1 Biomolecules and reactions 🔒 Pro 3 video(s) 2 Activity: Why do animals often prefer to eat ripe fruit? 🔒 Pro 4 Photosynthesis 🔒 Pro 1 video(s) 5 Activity: Why do plants have different kinds of leaves? 🔒 Pro 6 Cellular respiration 🔒 Pro 1 video(s) 8 Flow of energy and matter through ecosystems 🔒 Pro 9 Biogeochemical cycles 🔒 Pro

Unit 6 Gene expression and regulation

1 Genes, proteins, and traits 🔒 Pro 1 video(s) 2 DNA structure and replication 🔒 Pro 4 Gene expression and regulation 🔒 Pro 1 video(s) 5 Mutations 🔒 Pro 7 Activity: How can gene mutations help us understand the formation of flowers? 🔒 Pro

Unit 7 Inheritance and variation of traits

1 Meiosis 🔒 Pro 1 video(s) 2 Activity: Why do kittens in a litter often look so different? 🔒 Pro 3 Mendelian genetics 🔒 Pro 4 video(s) 5 Complex patterns of inheritance 🔒 Pro 2 video(s) 6 Environmental effects on phenotype 🔒 Pro 1 video(s)

Unit 8 Mechanisms of evolution

1 Mechanisms of evolution 🔒 Pro 1 video(s) 3 Natural selection and adaptation 🔒 Pro 2 video(s) 4 Activity: Why are male birds often more brightly colored than females? 🔒 Pro 6 Group behavior and evolution 🔒 Pro 1 video(s) 7 Speciation and other patterns of evolution 🔒 Pro 1 video(s)

Unit 9 Common ancestry and phylogeny

1 Evidence for evolution 🔒 Pro 2 The fossil record 🔒 Pro 1 video(s) 4 Key events in the history of life 🔒 Pro 1 video(s) 5 Phylogeny and evolutionary trees 🔒 Pro 6 Activity: How can we reconstruct the evolution of species across islands? 🔒 Pro

Unit 10 Biodiversity and human impacts

1 Biodiversity and ecosystem services 🔒 Pro 1 video(s) 2 Activity: How does biodiversity vary in my community? 🔒 Pro 3 Threats to biodiversity 🔒 Pro 1 video(s) 5 Disturbance in ecosystems 🔒 Pro 6 Global change biology 🔒 Pro 7 Conservation and sustainability 🔒 Pro 1 video(s)

Unit 11 Explore biology through simulations

1 Introduction to simulation-based exercises 🔒 Pro 2 PhET simulation: Exploring gene expression 🔒 Pro 3 PhET simulation: Exploring natural selection 🔒 Pro 4 PhET simulation: Exploring the greenhouse effect 🔒 Pro

Unit 12 Teacher resources

1 Unit guides 🔒 Pro 2 Hands-on biology activities 🔒 Pro 3 Creativity in biology 🔒 Pro 12 video(s) 4 Meet the biology professional 🔒 Pro