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Ecosystem level topic tests (A4,B4,C4,D4)

The Ecosystems level is the one which is largest in scale so it's logical that it contains, organisms, cells and molecules. Connections from these topic are numerous to other topics. Here are a few suggestions. This test contains the following questions: A4.1 Evolution and speciation topic test - IB style questionsThere is a set of model answers / mark scheme here: A 4.1 Evolution & speciation - model answers This...

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