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, including: fins fish; fins

Explanation:

The sentence describes the Tiktaalik roseae as having fish - like features such as scales, gills, and fins. The colon in "fish: fins" is the most appropriate punctuation to introduce the example of a fish - related feature. The semicolon in "fish; fins" is incorrect as it is not used for this kind of list - like introduction, and "fish, including: fins" is an incorrect construction as "including" already implies a list and the colon after it is redundant.

Answer:

fish: fins