Darwin made which of the following observations during his journey aboard the HMS Beagle?
A. Although Galápagos finches had different physical attributes, they resembled mainland finches in Ecuador.
B. The largest and most fit organisms tended to have a higher rate of survival.
C. Galápagos finch populations were growing faster than the available food supply.
D. In Argentina, extant glyptodonts closely resembled extinct armadillos, only the armadillos were much larger.
Answer: A. Although Galápagos finches had different physical attributes, they resembled mainland finches in Ecuador.
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