Paths · College students, or anyone who wants the degree’s worth of biology

Following a biology major

The courses in the order a biology major takes them: a foundation, then the core, then electives that go deeper.

  1. 26 lessons

    Organismal Biology

    Foundation: how living things are built and how they work.

    Start: What an Organism Has to Do →

  2. 26 lessons

    Cell Biology

    Core: the cell, its parts and how they cooperate.

    Start: A Measured Eukaryotic Cell →

  3. 26 lessons

    Genetics and Molecular Biology

    Core: genes, inheritance and gene expression.

    Start: Mendel's Peas: Segregation and Independent Assortment →

  4. 26 lessons

    Ecology and Evolution

    Core: populations, communities and the history of life.

    Start: How to Test an Evolutionary Explanation →

  5. 30 lessons

    Biochemistry

    Core: the chemistry that runs the cell.

    Start: Vitalism: How Chemistry Captured Life →

  6. 28 lessons

    Neuroscience

    Core: the nervous system from molecules to behavior.

    Start: The Map: How the Nervous System Is Organized →

  7. Optional · 44 lessons

    Cell Signaling

    Elective: how cells talk to each other.

    Start: Signals and How Far They Travel →

  8. Optional · 51 lessons

    Developmental Neuroscience

    Elective: how a nervous system builds itself.

    Start: The Wiring Problem: How a Brain Gets Built →

  9. Optional · 30 lessons

    Sensory Systems

    Advanced elective: touch, sight, sound, smell and taste.

    Start: Five Ways to Turn a Stimulus into a Current →

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