Microbiomes Unit Review

There are over _____________ microorganisms in and on the human body.

• 5000

• 100 million

• 1 trillion

• 100 trillion

the basic unit of structure and function in living things.

• antibiotics

• scale

• cells

• researchers

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Too small to be seen with the naked eye.

• microscopic

• scale

• a researcher

• invisible

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The relative size of things.

• organisms

• population

• bigness

• scale

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

• organisms

• microorganisms

• a mouse

• A fly

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All living things are made of one or more ____________.

• cells

• tissues

• bones

• roots

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Which of these is a microorganism?

• human

• rabbit

• tree

• bacteria

Which one of these is microscopic?

• ringworm fungus

• a marble

• width of a human hair

• salt grains

Which one of these can be seen with the naked eye?

• salt grains

• ringworm fungus

• E. coli bacteria

• DNA

Which is true regarding cells?

• all cells are the same size and shape

• cells are only present in plant life

• cells are the basic building block of life

• cells are smaller than molecules

Tags

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