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Card 16

Front

Describe how single celled organisms exchange respiratory gases and explain why this method of gas exchange is only possible in very small organisms.

Back

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Card 17

Front

What is meant by genetic diversity?

Back

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Card 18

Front

What is meant by a hierarchy?

Back

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Card 19

Front

What is meant by a phylogenetic relationship?

Back

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Card 20

Front

Why is it that comparing the base sequence of a gene gives more information than comparing genes' amino acid sequence?

Back

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Card 21

Front

Describe the processes which lead to a reduced genetic diversity in populations of organisms.

Back

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Card 22

Front

Give two reasons courtship behaviour improves the probability of successful mating

Back

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Card 23

Front

What is a species?

Back

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Card 24

Front

Explain why it is more useful to calculate the index of diversity rather than record the number of each species present.

Back

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Card 25

Front

What information is needed to calculate the index of diversity for each species?

Back

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