Use the following to answer questions :
Consider five species of toads.Species A and B are sister species.Species C and D are also sister species.The clade containing species A and B is sister to the clade containing species C and D.Species E is sister to the clade containing A,B,C,and D.
-Not counting the root as a node,how many nodes would be found in a phylogenetic tree containing just species A,B,C,and D?
A) 1
B) 2
C) 3
D) 4
E) 5

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The Answer of Use the following to answer questions :
Consider five species of toads.Species A and B are sister species.Species C and D are also sister species.The clade containing species A and B is sister to the clade containing species C and D.Species E is sister to the clade containing A,B,C,and D.
-Not counting the root as a node,how many nodes would be found in a phylogenetic tree containing just species A,B,C,and D?
A) 1
B) 2
C) 3
D) 4
E) 5

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