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]
Zooxanthellae are alga+j)cplrc3 -rn toih *mp 7s-4mjh*lo;e p6wcn147 iqiw(*ofa3hp rw 0xthat live inside coral. Corals feed on the carbon compounds produaf*ppxin1ww 6 oqc (40wirh37 ced by zooxanthellae from carbon dioxide, water, and sunlight.
State the method of nutrition of these organisms.What is Zooxanthellae and Coral?
A. Autotroph; Heterotroph
B. Autotroph ;Detritivore
C. Heterotroph;Autotroph
D. Detritivore ;Heterotroph
参考答案: A
本题详细解析:
Zooxanthellae make carbo .r.m /.,xvyqw6zckvw17vlbw n compounds from carbon dioxide, water and energy from sunlight. So, zooxanthellae are autotrophs (organisms that make their own food). The coral feed on the carbon compounds produced by zooxanthellae. So, the corals are heterotrophs (organisms that must obtain carmww xl, v 7vw vkqbzr.1./.6cybon compounds from other organisms).
Detritivores feed on dead organic matter (Options B and D).
Option C has the nutrition of these organisms backward.
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