Mass Extinction Quiz

An extinction event where large groups of species completely disappear.

The study of the geographic distribution of species and communities.

The study of the forms and structures of organisms.

Evolution is the change in a lineage (line of descent).

The degree to which an organism is suited to its environment, measured by its relative genetic contribution to future generations.

A trait that increases an organism's adaptation to its environment.

Organisms or their traces become covered in sediment or volcanic ash, mineral-rich water infiltrates and replaces organic materials, and sediments compress resulting in rock.

The odds of finding evidence of an extinct species are not high.

Determined by time, the rate of decay of radioactive isotopes.

The time it takes for half of the atoms of a radioactive isotope to decay.