Analogous structures
Theory
Evolution
Fossils
Extinction
Homologous structures
Embryology
Speciation
Change in populations over time
the remains or impression of a prehistoric organism
Same structures, different functions
A well-substantiated explanation of the natural world, based on facts that have been repeatedly confirmed through observation and experiment.
Same function, different structures
the formation of new and distinct species
the dying out or termination of a species
The study of differences and similarities in embryos. All embryos start off looking similar