<human>: Question: Morphology-based and appearance-based are known as what?
Answer: Many of the traditional appearance-based taxa have been shown to be paraphyletic, so rather than using ranks like subclass, superorder, and infraorder, it has proved better to use monophyletic groupings (in which the last common ancestor is a member of the group).
 Is the question answered in a satisfactory fashion?

OPTIONS:
- yes
- no
<bot>: no