Q29 · Practice questionSimple familiar1 mark
QUESTION 29
Which pair of species shares the most recent common ancestor in the cladogram?
(A)
Turtle and frog
(B)
Skink and turtle
(C)
Gecko and skink
(D)
Gecko and frog
WORKED SOLUTION
1 markAnswer C
Answer
C
Working
Gecko and skink join at the most recent branching node. Tip order and apparent horizontal separation do not determine relatedness. Branch lengths in this cladogram do not represent time.
Marking criteria
- Select C. [1 mark]
Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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