Please choose the correct answer to the question: Comparing the skeletons of which of the following fish would best show the evolution of a fish species?

Answer1: a male fish and a female fish that could produce offspring Answer2: the same fish just before it received a cut and after it healed Answer3: a fish that lived recently and a fish that lived a long time ago Answer4: the same fish just after it hatched and when it was full-grown

Answer format: answer1/answer2/answer3/answer4