The theory developed based on observations made on the Galapagos islands was, Natural Selection.
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Source: https://socratic.org/questions/which-theory-was-developed-based-on-observations-made-on-the-gal-pagos-islands
Answer :
There are 2 versions of this.
Explanation:
Feminine:Tu (familiar) para nosotras
Masculine:Tu (familiar) para nosotros
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Es el pais mas pequeño de Suramérica
Su capital se llama Santiago