Marine biologists studying coral reef ecosystems have noted that certain fish species demonstrate remarkable adaptability to changing water temperatures. These fish can adjust their metabolism within days, a feat that takes most species generations to achieve.
As used in the text, what does the word "remarkable" most nearly mean?
ordinary
dangerous
extraordinary
invisible
Correct Answer: C
Choice C is the best answer. The passage emphasizes that these fish can do in days what takes other species generations, highlighting an exceptional ability. "Extraordinary" captures this sense of being unusually impressive.
Choice A is incorrect because "ordinary" contradicts the exceptional nature described. Choice B is incorrect because "dangerous" has no connection to the context of adaptation. Choice D is incorrect because "invisible" refers to visibility, not impressiveness.