問題詳情
48. Several adaptations that facilitate survival and reproduction on dry land emerged after plants divergedfrom algal. Which of the following traits is found in plants but not in charophyte algae?
(A) Alternation of generations.
(B) Chloroplasts with chlorophylls a and b.
(C) Circular rings of cellulose-synthesizing proteins.
(D) Flagellated sperm.
(E) Sporopollenin in zygotes.
參考答案
答案：A
難度：計算中-1
書單：沒有書單，新增