The selection of naturally occurring variations in populations.

Beneficial mutations that occur within a species that enhances its abilities to survive in a given area.

Preserves or traces of organisms that lived in the past whose structures have been replaced by minerals

The collection of fossils and their placement in chronological order based on age

A species of an organism that no longer has any living relatives surviving on the planet

A system that is used to organize and codify all life on Earth

The observable characteristics of an organism

A history of change

A beneficial event or situation with a positive outcome.

The study of how molecules, cells and organs interact to form a whole being

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