Students know fossils provide evidence of how life and environmental conditions have changed throughout geologic time.
Evidence suggests that living things change over periods of time. These changes can be attributed to genetic and/or environmental influences. This process of change over time is called biological evolution. The diversity of life on Earth is classified using objective characteristics. Scientific classification uses a hierarchy of groups and subgroups based on similarities that reflect evolutionary relationships.
Students understand that life forms change over time, contributing to the variety of organisms found on the Earth.
- Natural Selection