問題詳情
14. In mammals, the presence of four limbs is______， and hair is_______.
(A) a shared derived character； a shared ancestral character that places mammals in the tetrapod clade
(B) a shared ancestral character； a shared derived character unique to mammals
(C) a homologous feature； an analogous feature
(D) monophyletic； parsimonious
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增