Kingdoms of Life ['kiɳ-dᵊmz-ᵊv-līf]

How things on Earth are classified into groups so scientists can study them.

In order to make sense of the world, scientists have decided how to group or classify things on Earth. The science of classification is called taxonomy. Scientists start by deciding if something is alive or not alive. The item is then classified into one of three domains and then into various Kingdoms of Life.

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