| Feature | Taxonomy | Systematics |
|---|---|---|
| Definition | Science of identification, nomenclature, and classification of organisms | Study of diversity and evolutionary relationships of organisms |
| Term/origin | "Taxonomy" coined by A.P. de Candolle (1813) | From Latin "systema" = systematic arrangement |
| Scope | Practical — naming and grouping organisms | Broader — includes taxonomy + phylogenetics |
| Primary activities | Identify, name, classify | Classify + reconstruct evolutionary history |
| Key output | Classification systems, binomial names, keys | Phylogenetic trees, cladograms, evolutionary patterns |
| Data used | Morphological characters (primarily) | Morphological + molecular + behavioural + ecological |
| Tools | Dichotomous keys, herbaria, type specimens | Phylogenetic software, DNA sequencing, + taxonomic tools |
| Relationship | Systematics contains taxonomy as a subset | Taxonomy is a subset of systematics |
| Historical origin | Practical need to organise biodiversity | Response to Darwin's evolutionary theory (1859+) |
| NEET key point | "Taxonomy was coined by A.P. de Candolle" | "Systematics = taxonomy + evolutionary relationships" |
Key Distinction for NEET:
Taxonomy asks: "What is this organism? What is its name? Where does it fit?" Systematics asks: "How is this organism related to all other organisms evolutionarily?"