What is bicarbonate?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

In which layer do organisms on earth love?