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Energy flow - IB style - model answers (copy)

1. This diagram represents an Antarctic food web.How is energy lost between the trophic levels?I. Heat loss through cell respirationII. Material not consumedIII. Material not absorbed during digestionA. I and II onlyB. I and III onlyC. II and III onlyD. I, II and IIIThe following food web shows some of the feeding relationships in a lake in Western Africa.

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