B2 classification, species, natural selection (part 1)

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This question is about classification.

(a)  The picture shows a species of fruit fly, Drosophila melanogaster.

Look at the diagram.

It shows part of an evolutionary tree for three different drosophila fruit flies. Drosophila dentissima

Drosophila melanogaster

Drosophila obscura

Speciation events

What is the genus of all three fruit flies? .............................................................................................................................................. [1]

© OCR 2015

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