本题目来源于试卷: IB ESS Unit 2: Ecosystems & Ecology，类别为 IB环境系统与社会
[单选题]
Identify which of the fon epij4b2ti*y*tm s46d7 /gu6 t yyw1rllowing statemen r c)up+a3r:krts is false when discussing a pyramid of r:rpc+3au )k rbiomass.
A. It is a measure of the mass of the living things in an area.
B. It is generally a proper pyramid shape.
C. It follows the ‘10% rule’ moving up the trophic levels.
D. It is measured in $gm^{-2}$
参考答案: C
本题详细解析:
Options A, B and D are all statements that are true o3 3u f(vbkjvk2f pyramids of biomass. Option C is true of pyramids of energy as 90% of the energy is lost at eachvv23 kj(3bf ku trophic level.
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