問題詳情
72. Which of the following statements about the evolution of seed plants is true?
(A) Seed plants evolved from ferns.
(B) Seed plants first appeared in the Devonian period.
(C) Seedsallowed plants to reproduce without water.
(D) Gymnosperms produce flowers and fruits.
(E)Angiosperms first appeared in the Carboniferous period.
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
用户評論
【用戶】按個讚
【年級】大一上
【評論內容】(A)seed plants和ferns演化自同祖先(B)Carboniferous period. (D)Angiosperms produce flowers and fruits.(E)Angiosperms first appeared in the Cretaceous period(白堊紀).
【用戶】按個讚
【年級】大一上
【評論內容】(A)seed plants和ferns演化自同祖先(B)Carboniferous period. (D)Angiosperms produce flowers and fruits.(E)Angiosperms first appeared in the Cretaceous period(白堊紀).
【用戶】熊熊讚
【年級】高三下
【評論內容】(A)兩者有共祖,但不適合說種子植物演化自蕨類(B)裸子植物出現於石炭紀(D)裸子植物無花無果實(E)被子植物出現於侏儸紀