Final answer:
A forensic anthropologist should use multiple bones to determine the height of an individual for more accurate results.
Step-by-step explanation:
A forensic anthropologist should use more than one bone to determine the height of an individual because height estimation based on a single bone can be less accurate. Different bones in the body have varying degrees of correlation with height, so using multiple bones provides a more reliable estimate. For example, the long bones, such as the femur and tibia, have a strong correlation with height, but other bones like the skull and vertebrae can also provide valuable information.