Evolutionary History Unit

The study of how species change over time through processes like natural selection and adaptation.

An older population from which two or more species have descended.

It indicates that they may have evolved from a common ancestor.

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

A change in a species that makes it better suited to its environment.

A species that has evolved from a common ancestor.

Shared structures suggest evolutionary relationships and common ancestry among species.

Environmental changes can lead to adaptations in species, sometimes resulting in changes in body structures.

A characteristic or feature of an organism that can be inherited.

A change in the DNA sequence of an organism that can lead to new traits.