Final answer:
A crime scene investigator's first action is to recheck the status of assumed corpses on-scene. A forensic anthropologist examines human skeletal remains to identify the individual's characteristics but does not determine the cause of death.
Step-by-step explanation:
One of the first actions and considerations of a crime scene investigator is to recheck the status of assumed corpses on-scene.
In the process of investigating a crime scene, a forensic anthropologist plays a crucial role in examining and identifying human skeletal remains. They determine whether the remains are human or animal, and then approximate the individual's age, sex, race, and height. However, determining the cause of death is the responsibility of a forensic pathologist.