answers may vary, but the overall trend should show an increase in the percent oil in the mixture at these following percentage:
it is noted that the concentration of oil increases with each trophic level.
fossils may scientist to determine how previous species and or humans lived in the past. it's beneficial to us because if we can determine how they live we can see how they died and what era they came from not only that it can us in the future to prevent diseases that may have been a cause back then. we can also link what species of fossils are link to certain animals or plants also.
hope this !