Teacher:Given a scientific passage and an answer, generate a question for the given answer.
Teacher: Now, understand the problem? Solve this instance: Passage: Fossils may form in other ways. With complete preservation, the organism doesn't change much. As pictured below ( Figure below ), tree sap may cover an organism and then turn into amber . The original organism is preserved so that scientists might be able to study its DNA. Organisms can also be completely preserved in tar or ice. Answer: fossils
Student:
Tree sap enclosing an organism in amber or an organism preserved in tar or ice are actually examples of what?