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Principles of classification
Grouping species together
Artificial classification
Natural classification
Based on evolutionary relationships between
organisms and the their ancestors
Groups organisms using shared features
derived from their ancestors
Arranges the groups into a hierarchy
Smaller groups within larger groups
Groups do NOT overlap
Smaller groups ­ more common ancestry…read more

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Organising the groups - taxonomy
Kingdom, e.g. fungi, plantae, animalia
Phylum, e.g. Zygomycota, Angiospermophyta,
Chordata
Class, e.g. Zygomycetes, Dicotyledonae,
Mammalia
Order, e.g. Mucorales, Rosales, Carnivora
Family, e.g. Mucoraceae, Fabaceae, Felidae
Genus, e.g. Mucor, Lathyrus, Felix
Species e.g. mucedo, odoratus, tigris…read more

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Phylogeny
Evolutionary relationships between
organisms
Phylogenetic relationships are
represented by tree-like diagrams ­
pylogenetic tree
Oldest species at the base of the tree
Newest at the ends of the branches…read more

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