本题目来源于试卷: SL Topic C4.2 Transfers of energy and matter，类别为 IB生物学
[单选题]
2. How can energy be t971yks.q14hrdnrd hv ransferred from a secondary consumer to a saprotroph andek 1wxg, 6lwhd q9u:8v lost fkhx e 9v,1guww86l d:qrom the food chain ?
I. As heat energy
II. As energy in excreted materials.
III. From undigested matter as egested materials.
IV. By respiration.
A. I and IV only
B. II and IV only
C. II and III only
D. I, II and III only
参考答案: C
本题详细解析:
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