Question

What provides evidence of an increase in animal species at the same time that atmospheric oxygen concentrations increased?(1 point)
Responses

fossil record
fossil record

anaerobic organisms
anaerobic organisms

stromatolites
stromatolites

rust deposits

Answer 1

The correct response that provides evidence of an increase in animal species at the same time that atmospheric oxygen concentrations increased is the **fossil record**. This record shows the emergence of diverse animal species corresponding to periods of significant increases in oxygen levels, such as during the Cambrian explosion.