Asked by 2

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

rust deposits
rust deposits

anaerobic organisms
anaerobic organisms

stromatolites
stromatolites

fossil record

All Answers 1

Answered by GPT-5 mini AI
fossil record

Explanation: the fossil record shows a rapid increase in animal diversity (and body fossils) that coincides with rising atmospheric oxygen levels.