Which of the following could be considered the most recent common ancestor of living tetrapods?

Question

Quizplus · Accepted Answer

This option describes a lobe-fin fish which had skeletal supports in its paired fins similar to those seen in early tetrapods. This suggests that this fish may have been a transitional form between fish and tetrapods, making it the most recent common ancestor of living tetrapods. Option B describes an armored fish with two pairs of appendages, which is not a characteristic of tetrapods. Option C describes a ray-finned fish, which is not a direct ancestor of tetrapods. Option D describes a salamander, which is already a tetrapod and cannot be the most recent common ancestor of living tetrapods.

Which of the Following Could Be Considered the Most Recent