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 nutrients by releasing vewv9yq+ ) 0yax4uv d:digestive enzymes into b+3jceb*v3w vtheir surroundings. The enzymes break down w3b+vcebvj 3* things such as dead and decaying leaves, and the fungi then 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 wherexf jm/07lmxo7u 0qgh (as heterotrophs are organisms that gain nutrition by feeding on other organisms (Options C, D). Detritivores consume dead organic matter q0 mj x(lxgof/07m7h uby ingestion (Option C) whereas saprotrophs break down food outside their bodies by secreting enzymes into the environment.
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