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 digestive ,sa,v/a wf1 :dztsoke /tg 79fbeh3z5enrl r-z *94 fjdey0rr6 ztp8r5fzymes into their surroundings. The enzymes break down things such as dead and deca0rfzrd-5 letr6jf8*r 9y zpr4 ying 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 (Optx2dwn1 +64 ik0 d8op ouv7jbotions A, B). They are self-feeding whereas heterotroukbj8 odd016 24xoo+tpvi7w nphs 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 outside their bodies by secreting enzymes into the environment.
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