問題詳情
36. Which of the following is an ongoing trend in the evolution of land plants?
(A) decrease in the size of the leaf
(B) reduction of the gametophyte phase of the life cycle
(C) elimination of sperm cells or sperm nuclei
(D) increasing reliance on water to bring sperm and egg together
(E) replacement of roots by rhizoids
(A) decrease in the size of the leaf
(B) reduction of the gametophyte phase of the life cycle
(C) elimination of sperm cells or sperm nuclei
(D) increasing reliance on water to bring sperm and egg together
(E) replacement of roots by rhizoids
參考答案
答案：B
難度：適中0.608696
統計：A(0),B(14),C(1),D(2),E(1)
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