Which two taxa share the most recent common ancestor?
- A
X and Q
- B
W and X
- C
Y and Z1
- Dcheck_circle
Z1 and Z2
Explanation
Z1 and Z2 join at the most distal node (lowest in the tree), meaning their MRCA is the most recent of any pair shown.
Phylogeny
AP Biology· difficulty 2/5
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