Interaction & Interdependence C.9 Transfers of Energy & Matter (id: f8e01d1b1)

本题目来源于试卷: Interaction & Interdependence C.9 Transfers of Energy & Matter，类别为 IB生物学

[单选题]
Which of the organisms in the food web below is both 2w kbxq/xn(o;2/k om( * lqroz3cb3zza secondary and a tertiarygr j6b aeppml51c/c:g zz):n ) consumer?gcl )jgp rab/p):e6 z1z5mcn :

A. Harbour seal
B. Polar bear
C. Arctic cod
D. Capelin


参考答案:  C


本题详细解析:

Explanation​:

Arctic cod feeds on herbivorous zooplankton which is a primary consumer which makes Arctic cod a secondary consumer. Arctic cod also consumes carnivorous zooplankton which is a secondary consumer, making Arctic cod both a tertiary and secondary consumer.

Harbour seals (Choice A), polar bears (Choice B) and capelins (Choice D) are all tertiary consumers, not secondary consumers.

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