IB ESS Unit 2: Ecosystems & Ecology (id: 9c9e6e193)

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 following statements is false whenjnml10c rk i-r;k/0bv e/e)21cf z ht;o;wzyll(z:pc6o ep*g discussing a pyramid of fc y2)ce*;o(lo lp p t:z;ee1z6/zhwg biomass.

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 $g{m}^{-2}$


参考答案:  C


本题详细解析:
Options A, B and D are all statements that are true of pc+jitih*y clk1 y 4;nii-,r2oyramids of biomass. Option C is true of pyramids of energy as 90% of tho ;iri1l,+c*iijc n2-yhyt k4e energy is lost at each trophic level.

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