C. Impression fossils.
It can be both a cast and/or mold fossil. It leaves an impression on the fossil. Hope I helped! :3
Base on the said question that ask to determine if the said fossil found of organism that lived 3700 million years ago were aerobic or anaerobic and base on my research, I would say that its Aerobic. I hope you are satisfied with my answer and feel free to ask for more
A lava fountain is an example of the amount of heat stored in the Earth. Geysers, lava mountains and hot springs are all natural examples of geothermal energy.
Answer
C. They are source of new genetic variation
Explanation
Mutation result in genetic changes allowing species to develop new traits because the DNA changes thus affecting how the living organism will behave, look and adjust to physiology processes. Through mutation, evolution has been achieved because living things can survive as they fit into new environment with new traits acquired through mutation.
