... originated somewhere else and came to us from space. This might be possible but there is actually no supporting evidence for it. Paleontology has also played a big role in the study of evolution. Over the years, paleontologists have collected millions of fossils to make up the fossil record. The fossil record represents the preserved history of the Earth's organisms. Paleontologists have ... used as an evolutionary clock. Phylogeny is the line of evolutionary descent. Biochemistry can be used to support other evidence about revolutionary relationships, and it can be very simple. Scientist...

• Word Count: 2685
• Approx Pages: 11
• Has Bibliography
• Grade Level: High School