問題詳情
9. During the secondary succession in the forest, with time the number of woody species________.
(A) decreases, being highest at the initial stages of the succession.
(B) increases and then levels off, being highest in the climax vegetation.
(C) does not change - pioneer species at the early stage of the succession are slowly replaced by the same number of climaxspecies in the late stage.
(D) is unpredictable and depends on the forest system under study.
(E) none of the above.
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