Microbiome Chapter 1

The relative size of things.

• ruler

• distance

• inches

• scale

Living things, such as plants, animals, and bacteria

• microorganisms

• organisms

• pets

• germs

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An organism that is too small to be seen with the naked eye.

• ants

• organisms

• microorganisms

• molecules

All living things are made of _________.

• cells

• blood

• molecules

• bacteria

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Which of these objects is smaller than a cell?

• molecule

• ant

• marble

• hair

How do we measure microorganisms?

• micrometers

• centimeters

• meters

• inches

Different microorganisms can be different sizes.

• True

• False

Some organisms are made of just one cell.

• True

• False

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Atoms are bigger than cells.

• True

• False

Too small to be seen with the naked eye.

• microscopic

• telescopic

• tiny

• really small