Based on the theory of evolution, in which rock layer would we find the least biodiversity? .

based on the theory of evolution, the rock layer that would have the least biodiversity would be : A. Devonian period The Devonian period exist between 60 million - 419 millions years ago. During this period, we still hasn't got enough mutation to create genetic variation. Less amount of genetic variation means less diversity

Region b indicates the occipital lobe

The answer is a. i hope this