Campbell Essential Biology Plus MasteringBiology with eText -- Access Card , radiometric dating can be used to determine the age of biological materials. For example, carbon makes up about 1 part per trillion of naturally occurring carbon. Eric J Simon, Jean L Dickey, Kelly A Hogan, Jane B ReeceAuthors. rapidgator.site? Part B. What is the principle of original horizontality? ANSWER: . The entire time scale was originally based on relative dating, since radiometric dating was not .. of archeological artifacts of biological origin such as bone, cloth, wood. Ch 07 key concept HW 1 of 10 https:/rapidgator.site Interpreting Data: Radiometric Dating Scientists can use the ANSWER: Correct Part B - Thinking critically French scientists used carbon dating.