Consider four species of conifers.Species A and B are sister species.Species C and D are also sister species.The clade containing species A and B is a sister to the clade containing species C and D.Not counting the root as a node, how many nodes would be found in a phylogenetic tree of species A, B, C, and D?
A) One
B) Two
C) Three
D) Four
E) Five

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The Answer of Consider four species of conifers.Species A and B are sister species.Species C and D are also sister species.The clade containing species A and B is a sister to the clade containing species C and D.Not counting the root as a node, how many nodes would be found in a phylogenetic tree of species A, B, C, and D?
A) One
B) Two
C) Three
D) Four
E) Five

Consider Four Species of Conifers