In Biology, systematics is the study of the diversity of Organism characteristics, and especially how they relate Evolutionarily. The term "systematics" may or may not overlap with "taxonomy" which concerns itself with Scientific classification of Species and other taxa.
| Basic topics in Evolutionary biology |
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| Processes of Evolution: evidence - Macroevolution - Microevolution - Speciation |
| Mechanisms: Selection - Genetic drift - Gene flow - Mutation |
| Modes: Anagenesis - catagenesis - Cladogenesis |
| History: History of evolutionary thought - Charles Darwin - The Origin of Species - modern evolutionary synthesis |
| Subfields: Population genetics - Ecological genetics - Human evolution - Molecular evolution - Phylogenetics - systematics - evo-devo |
| List of evolutionary biology topics | Timeline of evolution | Timeline of human evolution |