High school biology (TX TEKS)
Learn high school biology using videos, articles, and TEKS-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 units85 videos10 hours
Learn it live with a class on Puzzicle · Teachers: use it with your class
Unit 1: The cellular basis of life
The cellular basis of life
Prokaryotic and eukaryotic cells
Biomolecules and reactions
Cell structure and function
Homeostasis in cells
Unit 2: The cell cycle and differentiation
The cell cycle and mitosis
Fertilization, growth, and cell differentiation
Unit 3: From cells to organisms
Organization of multicellular organisms
Organ system interactions
Homeostasis in organisms
Unit 4: Gene expression and regulation
Genes, proteins, and traits
DNA structure and replication
Gene expression and regulation
Mutations
Unit 5: Inheritance and variation of traits
Meiosis
Mendelian genetics
Complex patterns of inheritance
Unit 6: Mechanisms of evolution
Mechanisms of evolution
Natural selection and adaptation
Speciation and other patterns of evolution
Unit 7: Common ancestry and phylogeny
Evidence for evolution
The fossil record
Phylogeny and evolutionary trees
Unit 8: Photosynthesis and cellular respiration
Reactions and enzymes
Cellular respiration
Unit 9: Energy and matter in ecosystems
Interactions in communities
Flow of energy and matter through ecosystems
Biogeochemical cycles
Unit 10: Biodiversity and human impacts
Biodiversity and ecosystem services
Threats to biodiversity
Disturbance in ecosystems
Unit 11: Explore biology through simulations
Introduction to simulation-based exercises
Learn this with a class
With a class on Puzzicle this course runs as a timetable of live study parties: your batch watches together and answers the check-ins, sometimes with a teacher leading.
Course content © Khan Academy, used under CC BY-NC-SA. See this course on Khan Academy.