Which of the Following Could Be Considered the Most Recent

question 86

Multiple Choice

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

• A)a sturdy-finned,shallow-water lobe-fin whose appendages had skeletal supports similar to those of terrestrial vertebrates
• B)an armored gnathostome with two pairs of appendages
• C)an early ray-finned fish that developed bony skeletal supports in its paired fins
• D)a salamander that had legs supported by a bony skeleton but moved with the side-to-side bending typical of fishes