The word that fits would be B. Generosa.
Late but hope it helps.
The theory developed based on observations made on the Galapagos islands was, Natural Selection.
I hope I helped you!
Source: https://socratic.org/questions/which-theory-was-developed-based-on-observations-made-on-the-gal-pagos-islands
Okay the first one is ALTOS, the second one is SERIAS, and the last one (I'm pretty sure) is SIMPATICA.
