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Natural Selection
Process where organisms better adapted to their environment tend to survive and reproduce.
Artificial Selection
Selective breeding of plants and animals to promote the occurrence of desirable traits.
Sexual Selection
Selection of mates based on specific traits leading to changes in a species.
Fossil Record
Provides evidence of past life and evolution through preserved remains.
Comparative Anatomy
Study of similarities and differences in the anatomy of different species.
Homologous Structures
Structures in different species that are similar due to common ancestry.
Analogous Structures
Structures in different species that have similar functions but different origins.
Molecular Biology
Study of biological molecules to understand evolutionary relationships.
Biogeography
Study of the distribution of species and ecosystems in geographic space.
Theory of Evolution
Explanation of the diversity of life on Earth through descent with modification.
Allopatric Speciation
Speciation that occurs when a population is geographically isolated.
Sympatric Speciation
Speciation that occurs without geographic isolation.
Population Dynamics
Study of changes in population size and composition.
Species Adaptation
Process by which a species becomes better suited to its environment.
Cladograms
Diagrams showing evolutionary relationships among a group of organisms.
4 Steps of Natural Selection
Variation, Inheritance, Selection, Time.
Importance of Variation
Genetic diversity within a population that allows for adaptation to changing environments.
Note 
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