Classification – process by which living things are placed into groups depending on their structure & characteristics in a system
Linnean system (Carl Linnaeus)
- Linnean system – Dear Kate Please Come Over For Great Spagetti)
Describe the impact of developments in biology on classification systems
- Improvements in microscope
- Better understanding of biochemical process
- Evidence of internal structures become more developed
- New models of classification proposed
Three-domain system’ (Carl Woese)
- Archaea – primitive bacteria usually living in extreme environments
- Bacteria – true bacteria
- Eukaryota – includes protists, fungi, plants and animals
Evolutionary trees
- A method used by scientists to show how they believe organisms are related
- Use current classification data for living organisms & fossil data for extinct organism