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Evolution and the tree of life

This course contains 3 segments:

Evolution and natural selection

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This course contains 3 segments:

Evolution and natural selection

Learn about evolution, the process in which groups of organisms change in their genetic makeup and heritable features over time. Natural selection is an important mechanism of evolution, one that can cause groups to become better suited to their environments over generations.

Population genetics

At its core, evolution is a change in the allele frequencies in a population over time. But how does this change happen, and how can it be measured? Here, we'll address these questions at both the conceptual and mathematical levels.

Speciation and evolutionary trees

A family tree can tell you how you are related to your close relatives...but an evolutionary tree can tell us how all living things on Earth are related! Learn about what makes something a species, where new species come from, and how living organisms can be classified into groups (on the basis of either evolutionary relatedness or other features).

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Time
1 hours
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Khan Academy
This course belongs to a collection called Biology. It's comprised of 31 courses:
  1. Intro to biology
  2. Chemistry of life
  3. Water, acids, and bases
  4. Properties of carbon
  5. Macromolecules
  6. Energy and enzymes
  7. Structure of a cell
  8. Membranes and transport
  9. Cellular respiration
  10. Photosynthesis
  11. Cell signaling
  12. Cell division
  13. Classical and molecular genetics
  14. DNA as the genetic material
  15. Central dogma (DNA to RNA to protein)
  16. Gene regulation
  17. Biotechnology
  18. Developmental biology
  19. Bacteria and archaea
  20. Viruses
  21. Evolution and the tree of life (viewing)
  22. History of life on Earth
  23. Ecology
  24. Biodiversity and conservation
  25. Behavioral biology
  26. Principles of physiology
  27. Human biology
  28. Studying for the AP Biology exam?
  29. Crash Course: Biology and Ecology
  30. Meet the biology professional
  31. Plant biology
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