Living things are made up of tiny units called cells.
Cells are the smallest living units in a living thing.
Some living things are made up of a single cell. They are unicellular.
Other living things are made up of many cells. They are multicellular.
Cells are the smallest living units in a living thing.
Some living things are made up of a single cell. They are unicellular.
Other living things are made up of many cells. They are multicellular.
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