What should be True of fossils of the earliest tetrapods?
A)They should show evidence of internal fertilization.
B)They should show evidence of having produced shelled eggs.
C)They should indicate limited adaptation to life on land.
D)They should be transitional forms with the fossils of chondrichthyans that lived at the same time.
E)They should feature the earliest indications of the appearance of jaws.

Question

Quizplus · Accepted Answer

The earliest tetrapods would have been transitioning from aquatic to terrestrial environments, so their fossils should show limited adaptation to life on land.

Answer: A and B are incorrect because internal fertilization and shelled eggs did not evolve until later in the evolution of tetrapods. 
Answer: D is incorrect because chondrichthyans are cartilaginous fish and not closely related to tetrapods. 
Answer: E is incorrect because jaws evolved much earlier in the evolution of vertebrates before the emergence of tetrapods.

What Should Be True of Fossils of the Earliest Tetrapods