In the phylogenetic trees, numbers represent species, and the same species are shown in both trees. Which two species are represented as sister species in Tree 2 but are not shown as sister species in Tree 1?
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 4 and 5

Question

In the phylogenetic trees, numbers represent species, and the same species are shown in both trees. Which two species are represented as sister species in Tree 2 but are not shown as sister species in Tree 1?
A) 1 and 2 
B) 2 and 3 
C) 3 and 4 
D) 4 and 5

Quizplus · Accepted Answer

In Tree 2, species 3 and 4 are sister species, but this relationship is not shown in Tree 1. All other sister species relationships are consistent between the two trees. Therefore, the correct answer is C, which represents species 3 and 4.

In the Phylogenetic Trees, Numbers Represent Species, and the Same