Cells
100

A name for a single cell is 

Unicellular

200

Scientists classified organisms into 2 super kingdoms

Prokaryotes and Eukaryotes

300

This prokaryote does not have a nucleus

Bacteria

400

This single celled organism is also an example of a  Prokaryote

Archaea

500

Archaea make their own food and are called?

Chemotrophs

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