At One Time, Chondrichthyes Were Thought to Have Diverged from Other

At one time, Chondrichthyes were thought to have diverged from other vertebrates before the evolution of bone. Now we have concluded that the Chondrichthyes diverged after the evolution of bone had started. What does this change demonstrate about the evolution of fishes?

A) characteristics can be lost in evolution
B) evolution is one-way and straight line
C) hagfishes and lampreys have ancestors with bone
D) cartilage contributes to keeping sharks light so they do not sink

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free