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: The buildup of i67)u dwv x8az t gzijt9v;g9 mkr:cw ma j6)i99oxins in food chains
[Paulsen, O (2018). The_build_up_of_toxins_in_a_food_chain. Wikimedia Commons. Retrieved June 20, 2023 from https ://upload.wikimedia.org/wikipedia/commons/3/3c/The_build_up_of_toxins_in_a_food_chain.svg. CC BY-SA-3.0]
Identify the process that is represented by the Figure.
A. Bioaccumulation
B. Eutrophication
C. Acidification
D. Biomagnification
参考答案: D
本题详细解析:
Option A refers to the amount of toxins that build up in one creatur za rb)y-06) +4izkdw-n tgfqte over their lifetime. Although bioaccumulation needs to occur for biomagnification tonw06fz -r y+bgq4kd -a)i tzt) occur, bioaccumulation is not shown in the figure.
Option B refers to an extreme increase in nutrients in an aquatic ecosystem that interrupts the stability of the ecosystem.
Option C refers to the process where something becomes more acidic.
Option D is correct as it refers to the increased levels of a toxin as we move up the trophic levels of a food chain. This is seen in both examples in the figure and the short description provided.
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