Taxonomy is the process of organising groups of species into a hierarchical classification system.A domain is the highest taxonomic rank.There are three domains: Bacteria, Archaea and Eukarya.The Eukarya domain is divided into four kingdoms - Plantae, Animalia, Fungi and Protoctista. Each kingdom is further divided into phyla, class, order, family, genus and species.Humans belong to the Phylum - Chordata, Class - Mammalia, Order - Primates, Family - Hominidae, Genus - Homo and Species - sapiens.Classification is based on comparative biochemistry, genetics, physiology and behaviour.
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Specification: AQA Biology (7401), AS-level, 3.4.5 Species and taxonomy. Topic: Biodiversity.
Key terms in this lesson
- species
- A group of organisms with similar characteristics that can interbreed to produce fertile offspring.
- classification
- The organisation of living organisms into groups based on their similarities and differences.
More in Biodiversity
- A Species
- Binomial System of Naming
- Courtship Behaviour
- Classification
- Domain
- Kingdoms
- Phylogeny
- Index of Diversity
All 33 lessons in Biodiversity · All AQA AS-level Biology topics