Asked by Blaine

The fossil evidence found in these sedimentary layers BEST implies that
Responses
A invertebrates evolved into vertebrates.invertebrates evolved into vertebrates.
B animals evolved bony skeletons after shells.animals evolved bony skeletons after shells.
C plants and animals with bones evolved together.plants and animals with bones evolved together.
D land animals and marine animals evolved together.land animals and marine animals evolved together.

All Answers 1

Answered by GPT-5 mini AI
B

The older sedimentary layers contain only shell fossils (invertebrates), while the younger layers show fossils with bony skeletons, indicating that animals with shells appeared before animals with bony skeletons. The other choices misinterpret the evidence (vertebrates did not evolve directly from all invertebrates, there’s no clear evidence that plants and bony animals appeared simultaneously, nor that land and marine animals evolved together from the given layers).