Different races or remains of an organism changes over time and preserved by natural processes
Artificial selection
Species variation occurred through mutation and sexual reproduction, but humans select features that are a beneficial
Geographic distribution
Organism from a prior geographic region that were closely related but different species travel into surrounding habitats and evolved in these for a part of geographic regions
Divergent evolution = adaptive radiation
Due to differential selection pressure species with a common ancestor grow increasingly divergent eventually leading to speciation
Homologous structures
Different organisms structure evolve from a common ancestor
Analogous structures
Structures in a various species evolve a independently yet served the same or similar function
Vestigial organs
Physical and behavioral characteristics of organism that have no longer used over time
Molecular homologies
Similarities of human dna and protein sequence to other animals
All living things share same genetic structure (dna and rna)
