Q13 · 2023 · Paper 1Unclassified1 mark
QUESTION 13
Which option best describes the conditions for parapatric speciation?
(A) Geographical barriers limit gene flow between populations.
(B) Gene flow is interrupted in populations occupying the same habitat.
(C) A species occupies such a large geographical area that mate selection is influenced by proximity.
(D) A small group of organisms becomes separated from their parent population by physical barriers.
WORKED SOLUTION
1 markAnswer C
OFFICIAL ANSWERC
QCAA awards 1 mark for selecting option C.
Correct option from the official QCAA answer key.