Species are classified according to a taxonomic hierarchy, where one large group is subdivided into subgroups, which in turn are divided into smaller groups. Kingdom ↓ Phylum ↓ Class ↓ Order ↓ Family ↓ Genus ↓ Species There are 5 large kingdoms; Pro kary otes, Protoctis ts, Fungi, Plants & Animals. When talking about a species we don’t give the full classification, just the species and the genus, e.g. an earthworm is Lumbricusterrestrius. The genus is written first (starts with an upper case letter), followed by the species name (starts with a lower case letter). The entire name is written in Italics. If you are handwriting names, rather than attempting Italics, the name is underlined. Using this binomial syst em (2 names) it is easy to tell the difference between similar species, e.g. the common domestic cat is Felix catus, whereas a wild cat is Felix sylvestris,a lion is Felixleonisand a lynx is Felix lynx. Classification
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