Which of the following is (are)problematic when the goal is to construct phylogenies that accurately reflect evolutionary history?
A) polyphyletic taxa
B) paraphyletic taxa
C) monophyletic taxa
D) Two of the responses are correct.

Question

Quizplus · Accepted Answer

Polyphyletic and paraphyletic taxa are problematic for constructing accurate phylogenies because they do not represent natural groups derived from a common ancestor. Polyphyletic groups consist of species with similar characteristics but different ancestors, while paraphyletic groups include some, but not all, descendants of a common ancestor. Monophyletic taxa, which include an ancestor and all its descendants, are ideal for reflecting evolutionary history.

Which of the Following Is (Are)problematic When the Goal Is