Bacteria

All the bacteria in your body weights almost _________ kilograms.

An office desk has _________ times more bacteria than a toilet.

Scientists found 1458 new types of bacteria in/on

How many bacteria on each tooth when your mouth is clean?

The first time a scientist saw bacteria using a microscope was in the ________ century.

We use bacteria to make __________ .

_____________ is anti-bacterial. (3 correct answers)

Offices with more ______________ have more bacteria