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Continuity of life on Earth — Question 12

QCAA 2022, Paper 1 · 1 mark

Q12 · 2022 · Paper 1Unclassified1 mark

QUESTION 12

Speciation occurs when

(A) the gene pool of an existing species becomes too small to support a viable population.

(B) selection pressures cause significant changes to the allele frequencies of a population.

(C) genetic drift is no longer occurring within populations.

(D) gene flow is no longer occurring between populations.

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