How does the fossil record suggest common ancestry?

What is an example of a vestigial structure in humans?

Describe the importance of amino acid sequencing in the study of evolution

the first one is: Fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess