- Understanding what evolution is.
- Being able to describe the most important events in the history of life.
- Evolution means the gradual development of species as a result of mutations and natural selection.
- The history of life can be studied by examining fossils.
- The history of life can be divided into four eras.
- The beginning of life:
- The planet Earth was formed 4,6 billion years ago.
- Multicellular organisms and sexual reproduction emerged during the end of the Precambrian era.
- The Paleozoic era:
- The first plants and animals moved to land.
- Vertebrates developed.
- The Mesozoic era:
- The era of reptiles (such as dinosaurs).
- Gymnosperm and angiosperm plants, birds, and mammals developed.
- The Cenozoic era:
- Birds and mammals diversified and became more common.
- Humans developed towards the end of the Cenozoic era.
