What organic compound makes hair and fingernails?

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

Isotopes of the same element have differ in their

Toorale man murder mystery < - your lab link 1. how was the toorale man found? 2. what did archaeologists learn about the burial? why is the burial important? 3. what information were the scientists able to learn from the skeleton itself? 4. why is the question of whether the injuries came from a stone or steel weapon important? how could scientists distinguish between the different types of weapons? 5. what did the carbon dating and soil testing tell scientists about toorale man? why are the dates interesting for scientists?