Question

exit ticket
one pattern in the fossil record is ____, and it shows that ____.
extension
explain at least two observations of the following fossil record.

Explanation:

Answer:

One pattern in the fossil record is that older rock layers contain simpler organisms while younger layers contain more complex ones, and it shows that life has changed and evolved over time.

1. Fossils found in deeper rock layers (such as the Paleozoic) are older than those found in layers closer to the surface (such as the Cenozoic).
2. Mass extinction events, like the one at the end of the Cretaceous, are marked by the sudden disappearance of many fossil types from the rock record.