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IB ESS Unit 2: Ecosystems & Ecology (id: 9e00969ff)

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admin 发表于 2024-4-15 21:26:02 | 显示全部楼层 |阅读模式
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]
Some fungi obtain nutrientbdq+zec*1qa (s by releasing digestive enzymes in-qtq3n cyd k(4uce4 hbr*n0f tq0x w(0to their surroundings. The enzymes break down things such as dead and decaying leaves, and the fungi thdqn0c-t4nr3ye*w( q b 4fh u0xkt0c(q en absorb the products.
State the terms that best describe these fungi.

A. Autotrophic detritivores.
B. Autotrophic saprotrophs.
C. Heterotrophic detritivores.
D. Heterotrophic saprotrophs.


参考答案:  D


本题详细解析:
Autotrophs are producers (Options A, B). They are self-feeding whereas hetu8z*p 2zh5v /y69idyeef- qtuerotrophs are organisms that gain nutrition by feeding on other organisms (Options C, D). Detritivores consume dead organic matter by ingestion (Option C) whereas saprotrophs break down food fdvzyq eit-u92h/5 p6y *u 8ezoutside their bodies by secreting enzymes into the environment.

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