Students know fossils are evidence of past life.
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 living things can be classified according to physical characteristics, behaviors, and habitats.
- Natural Selection