Dr. gregory erickson studied the fossilized bones of a dinosaur called albertosaurus to determine the age at which individual dinosaurs died. from this data he constructed a survivorship curve.

who knows

explanation:

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.