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Science

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Biology

Explore biology from cells and organisms to genetics, evolution, and interpreting experiments.

10 lessons

Lessons

  1. 1

    Regulating gene expression

    3 min

  2. 2

    Predicting mutation effects

    3 min

  3. 3

    Chemiosmosis and ATP production

    3 min

  4. 4

    Identifying limits on photosynthesis

    3 min

  5. 5

    A population-genetics baseline

    3 min

  6. 6

    Genetic drift and gene flow

    3 min

  7. 7

    Population growth and carrying capacity

    3 min

  8. 8

    Tracing food-web effects

    3 min

  9. 9

    Designing a controlled experiment

    3 min

  10. 10

    Interpreting evolutionary trees

    3 min