What type of material is often used to make impressions of tool marks?

a. cement mix
b. dental paste
c. porcelain clay
d. plaster of paris

The diagram illustrates the activity of vesicles during a cellular process.

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.

In the controversial scientific process of cloning, organisms are created that are genetically identical to there parent. this process would be classified as