The Galapagos Islands had slightly different tortoises on each of the islands is an observation that Darwin made on his voyage (Option C).
The evolutionary Darwin theory is a model proposed by Charles darwin about how species change (evolve) across time as a function of environmental characteristics and the process of natural selection.
Therefore, with this data, we can see that the evolutionary Darwin theory is based on different observations such as tortoises in the Galapagos islands which led to understanding the meaning of the evolution of the species.
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