Over twenty different types of cancer have been found to exist in the world today. ... The news constantly contains reports of the many different types of ways a human can get cancer. The main reasons one can get cancer are smoking, dietary factors, exercise, occupation, genetics, pollution, radiation, and even prescription drugs. ... Since many types of cancer exist, anyone at any age has a risk of being diagnosed. ... Currently, scientists are trying to find and learn about the sequences of genes of types of cancer. ...

• Word Count: 831
• Approx Pages: 3
• Grade Level: High School

Evolution Evolution, a process of change through time, is what links together the enormous diversity of the living world. A lot of evidence is present that indicates that the earth has had a very long history and that all living things arose in the course of that history fro...

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