問題詳情
77. An ecosystem is defined as__?
(A) all of the individuals of the same species living in an area；
(B) the physical place and environmental surroundings in which individual organisms live；
(C)
the set of environmental resources that each organism requires for survival, growth,
reproduction, etc；
(D) the sum of living organisms and nonliving environmental components in
an area.
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