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Card 26

Front

Which gas diffuses from the air into the bloodstream?

Back

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Card 27

Front

What is the waste product of anaerobic respiration in muscles?

Back

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Card 28

Front

What do platelets do?

Back

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Card 29

Front

Which blood vessels carry blood away from the heart?

Back

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Card 30

Front

What do the valves in the heart do?

Back

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Card 31

Front

How many chambers are there inside the heart?

Back

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Card 32

Front

Which cells in the leaf do the most photosynthesis?

Back

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Card 33

Front

What is it called when particles move from a high to a low concentration?

Back

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Card 34

Front

What are the holes in the surface of a leaf called?

Back

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Card 35

Front

Which cells are where most photosynthesis happens in a leaf?

Back

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