Bacteria · ELIX

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Bacteria are single cells, and they are the tiniest living things. Thousands could fit on the dot of this i.
They have no nucleus. Their DNA floats loose in the cell.
They make more bacteria by splitting in two. In warm food, some can double every 20 minutes!
Helpful bacteria turn milk into curd and live in your tummy to help digest food.
Harmful ones can make you sick. Washing hands, boiling water, and keeping food cold keep them away.