IB ESS Unit 2: Ecosystems & Ecology (id: e030bed77)

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]
Figure: Flow of energy ib p au qjc)p- c8nqc-54cu5x1pn an ecosysteze a+em/b;+ y-,ch omwm / per area per year


Estimate the percentage of energy from the producers reaches the tertiary consumers.

A. 100%
B. 10%
C. 1%
D. 0.1%


参考答案:  D


本题详细解析:
As energy moves from producers to consumers, only abo09 ytw mks9qo32s-ys xut 10% is transferred to the next trophic level. So only about 0.1% of the energy produced by the producers reaches the tertiary consumers. All other options (Options A, B, C) are not correct. Looking at the values in the diagram, producers start with 20 000 units of energy and tertiary consumers receive only 25 units. 25 divided by 20 0ys2s9k o-qtwm09xys3 00 is approximately 0.1%

微信扫一扫，分享更方便