What predictable ordering is observed when studying the succession of life forms in sedimentary rock layers?

Answer

Simpler life forms tend to appear in older strata, with more complex forms in younger rocks.

The geological succession of fossils demonstrates a pattern where older, less complex organisms are found deeper in the sequence, while more recent, complex organisms are found in shallower rock layers.

What predictable ordering is observed when studying the succession of life forms in sedimentary rock layers?
paleontologyevolutionfossiltheoryevidence