GMAT Critical Reasoning (CR) | Re: For over a century, drosophila melanogaster have been used to study

I think it has to be C. If keeping the flies in glass containers affect the wing sizes than it's not right to theorise that short wings dominate and are used for sourcing food in wild, as it may happen that they used long wings for this purpose

Sent from my A0001 using GMAT Club Forum mobile app

---