Question

which is the best way to complete the text? the tiktaalik roseae, an aquatic creature that lived roughly 375 million years ago, is the first known species to have developed characteristics of four - legged animals while still retaining the features typically associated with _, scales, and gills. fish. fins fish; fins fish: fins

Explanation:

The colon is used to introduce an explanation or list of items related to what comes before it. Here, "fins" are a feature typically associated with fish, and the colon is the appropriate punctuation to connect "fish" and "fins" in this context. A period would create a choppy separation, and a semicolon is used for separating independent clauses, which is not the case here.

Answer:

fish: fins