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 liv jo1q19lowm 3v(jare lgc9t. 7e inside coral. Corals feed on tranuz :t-v6wm5q0qn p8:v n/bhe carbon compounds produced by zooxaq8 unvn6 zt r-n/wqb:v5ap:m 0nthellae 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 compounds from carbonjjcad zi/l7y* fuot isusv 46l 81-3r7 dioxide, water and energy from sunlight. So, r/6st 7sj7ii 1fu* jzacodl yl3-v8u4zooxanthellae 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 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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