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 .5)a: -zeyvymn7wc3/s q *rs)yvgwbz heb d.2cyqm g* t()p*o0 agil7following statements is false when discussing a pyramid of b e md.y2(l*)pqioh*c7a0g gbtiomass.
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 to8(;1oix2hhrs cj4ep(.irk2p 9 a m tyrue of pyramids of biomass. Option C is true of pyramids of energy281ih yc.9k( pe;rrmj(aoo shxt24 pi as 90% of the energy is lost at each trophic level.
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