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 nutrieni6 +(1 bo m sbgdqlbskx:t/4*ztsarb(vzl oexvx4r ;a (x .pd5 /7q4pmi) by releasing digestive enzymes into their surroundings. The enzymes break down thin .(pxrxxdba)pq v imo/5va4 ;elrz47 (gs 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 (Optjscy z11f0x3wn ye;og nd2*9hions A, B). They are self-feeding whereas heterotrophs are organisms that gain nutrition by feeding on other organisms (Options C, D). Detritivores consume dead organicf0hx ;*3c2nejnow 1d y1gy s9z matter by ingestion (Option C) whereas saprotrophs break down food outside their bodies by secreting enzymes into the environment.
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