Evolution and the tree of life

Lessons
Evolution and natural selection
Population genetics
Speciation and evolutionary trees
Lessons
Evolution and natural selectionPopulation geneticsSpeciation and evolutionary trees
Evolution and natural selection
Learn
Introduction to evolution and natural selection
Ape clarification
Intelligent design and evolution
Evolution clarification
Natural selection and the owl butterfly
Darwin, evolution, & natural selection
Variation in a species
Evidence for evolution
Evidence for evolution
Population genetics
Learn
Allele frequency
Hardy-Weinberg equation
Applying the Hardy-Weinberg equation
Discussions of conditions for Hardy Weinberg
Allele frequency & the gene pool
Mechanisms of evolution
Genetic drift, bottleneck effect, and founder effect
Genetic drift
Natural selection in populations
Speciation and evolutionary trees
Learn
Taxonomy and the tree of life
Species
Speciation
Species & speciation
Biodiversity and natural selection
Genetic variation, gene flow, and new species
Discovering the tree of life
Understanding and building phylogenetic trees
Phylogenetic trees
Building a phylogenetic tree
2015 AP Biology free response 3 - phylogenetic trees
About this unit
Discover the diversity of life on Earth and the forces that shape it! In this section, you can learn about evolution, natural selection, and the tree of life, as well as basic population genetics. Special bonus: take a peek into the amazing worlds of bacteria and viruses.