Evolution Vocab

Presence of differences in sequences of genes between the organisms of a species.

Theory that proposes that eukaryotic cells formed from a symbiotic relationship among several different prokaryotic cells.

Classification system in which a single imaginary line can divide the body into left and right sides that are mirror images of each other.

Body parts that share a common function, but not evolutionary history.

The evolutionary history of lineage.

Body parts that share a common evolutionary history, even if they have different functions.

The process by which new and distinct species evolve from existing species.

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

The history of life as documented by fossils, showing the progression of species over time.

A group of organisms believed to have evolved from a common ancestor.