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Lesson PreviewLesson 10 of 14 in this unit

7.9 Phylogeny

Part of Natural Selection in AP® Biology. Read the opening section, then create a free account for the full interactive lesson, practice, and progress tracking.

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Types of Evidence for Inferring Evolutionary Relationships

To understand the evolutionary connections between organisms, scientists use various forms of evidence, primarily phylogenetic trees and cladograms. These tools help illustrate the relationships between species, showing how they evolved over time from common ancestors.

In this unit

14 lessons

  1. 7.1Introduction to Natural SelectionPreview lesson
  2. 7.2.1Natural SelectionPreview lesson
  3. 7.2.2Phenotypic Variations and FitnessPreview lesson
  4. 7.3Artificial SelectionPreview lesson
  5. 7.4Population GeneticsPreview lesson
  6. 7.5Hardy-Weinberg EquilibriumPreview lesson
  7. 7.6Evidence of EvolutionPreview lesson
  8. 7.7Common AncestryPreview lesson
  9. 7.8Continuing EvolutionPreview lesson
  10. 7.9PhylogenyThis lesson
  11. 7.10SpeciationPreview lesson
  12. 7.11ExtinctionPreview lesson
  13. 7.12Variations in PopulationsPreview lesson
  14. 7.13Origins of Life on EarthPreview lesson

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