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Card 6

Front

What are three important factors of a respiratory surface?

Back

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Card 7

Front

Name a simple, unicellular organism?

Back

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Card 8

Front

What is the gas exchange surface of an amoeba?

Back

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Card 9

Front

Where does an amoeba live?

Back

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Card 10

Front

How do organisms become larger?

Back

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Card 11

Front

What are four problems a multicellular organism has to overcome with gaseous exchange?

Back

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Card 12

Front

How are adequate gradients for diffusion maintained?

Back

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Card 13

Front

What is the disadvantage of respiratory surfaces being thin?

Back

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Card 14

Front

What is a disadvantage of respiratory surfaces being located inside the body?

Back

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Card 15

Front

What are two benefits of the organism being flat?

Back

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