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Card 26

Front

what do guard cells do at night and why?

Back

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Card 27

Front

what are red blood cells adapted for?

Back

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Card 28

Front

why do they have a concave shape?

Back

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Card 29

Front

what are they filled with and why?

Back

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Card 30

Front

why dont thay have a nucleus?

Back

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Card 31

Front

what are sperm and eggs cells specialised in?

Back

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Card 32

Front

what are the main functions of the egg cell?

Back

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Card 33

Front

what happens to the egg when the sperm fuses with the egg?

Back

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Card 34

Front

why does a sperm cell have a lot of mitochondria?

Back

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Card 35

Front

why is a sperm cell important?

Back

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