作者gnuje (yi)
看板post-b.test
标题[问题] 请问一题生态
时间Thu May 26 14:05:47 2011
想请教一题生态的题目
Which of the following ecosystems would likely have a larger net primary
productivity/hectare?
(A) Open ocean because of the total biomass of photosynthetic autotrophs
(B) Grassland because of the small standing crop biomass that results from
consumption by herbivores and rapid decomposition
(C) Tropical rainforest because of the massive standing crop biomass and
species diversity.
(D) Cave due to the lack of photosynthetic autotrophs
(E) Tundra because of the incredibly rapid period of growth during the
summer season.
正确答案给的是 B
我想问的是 C
一般来说单位面积下的净初级生产力不是应该是热带雨林最高吗??
是答案错了还是我有漏想什麽
谢谢
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※ 编辑: gnuje 来自: 180.176.54.36 (05/26 14:06)