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 algae that lizq0)fxx7.9c ko a5ynp -zan5 bve inside coral. Corals feed on the carbon compoup 7fao)0n-5axc zy.5qxn9b zkhm, 4n;w7mid fg2q3 el- sj-ygnd4;, ge72qwm y- igd-sfhn3j lms produced 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 carbon cb k)50us ed 9j8ndzw,3nrv7fxompounds 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 zooxanthelle5 k,nwdnrxbfv9z8 )ujs03d7 ae. So, the corals are heterotrophs (organisms that must obtain carbon 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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