Q8 · 2025 · Paper 1Unclassified1 mark
QUESTION 8
Speciation is more likely to occur between two populations when
(A) gene flow is low and selection pressures are similar.
(B) gene flow is high and selection pressures are similar.
(C) gene flow is low and selection pressures are different.
(D) gene flow is high and selection pressures are different.
WORKED SOLUTION
1 markAnswer C
OFFICIAL ANSWERC
QCAA awards 1 mark for selecting option C.
Correct option from the official QCAA answer key.