IB ESS Unit 2: Ecosystems & Ecology (id: ac30b832b)

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: A simplified diagram ofiu5 w.-l qghh7 the marine carboh:00pp(/tiowxh 9 w/i/4j 4toxz.lprkz-l qun cycle



Identify which of the following correctly matches the Roman numerals on the figure with the process.What is I,II,III and IV?

A. Respiration; Eaten by;Death and Decomposition;Photosynthesis
B. Death and Decomposition;Photosynthesis; Respiration;Eaten by
C. Photosynthesis;Respiration;Death and Decomposition;Eaten by
D. Photosynthesis;Respiration;Eaten by;Death and Decomposition


参考答案:  D


本题详细解析:
Process I is photosynthesis and shows the capture of enerkhnkw5mvnxiq0 h; z.0*3 gsy )gy by phytoplankton from the Sun. Process II is respiration, whereby carbon dioxide is released into the atmosphere. Procesgs;vh5 . qyxni 03kkn* w0)zhms III shows the movement of carbon when the organisms are eaten by members of the next trophic level, and process IV is death and further decomposition of dead organisms by bacteria and other decomposers which eventually causes the release of carbon dioxide (through respiration).
All other choices (Option A, Option B and Option C) do not identify the processes correctly.

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