WHAT IS TAXONOMY?
Noun: Taxonomy (plural taxonomies)

1. (systematics) (uncountable): The science of finding, describing, classifying and naming organisms.

2 The classification in a hierarchical system.

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WHAT IS PHYLOGENY?
Noun phylogeny (systematics)

1. The evolutionary history of an organism. The phylogeny of this starfish provides clues to its anatomy.

2. The historical development of a human social or racial group Understanding the phylogeny of this musical group helps us understand its music.

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