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Continuity of life on Earth — Question 4

QCAA 2022, Paper 1 · 1 mark

Q4 · 2022 · Paper 1Unclassified1 mark

QUESTION 4

The graph shows the effect of a selection pressure on a hypothetical population.

Biology question figure

Key Before the selection pressure

Number of individuals

20 generations later

Which mode of phenotypic selection corresponds with the data?

(A) negative

(B) disruptive

(C) stabilising

(D) directional

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