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The Problems Every Animal Must Solve

What must a body accomplish to stay alive and reproduce? Follow material and energy through living cells, examine how size changes the problem, and build an evidence-based account of an animal in its environment.

6 chapters · 1 hr 10 min reading

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Chapters

  1. 01

    What counts as an explanation?

    12 min
  2. 02

    A body made of living cells

    12 min
  3. 03

    Size changes the problem

    11 min
  4. 04

    Energy and exchange

    11 min
  5. 05

    Staying within workable limits

    11 min
  6. 06

    A life cycle in an environment

    13 min