Which science skills did sue hendrickson use when she discovered sue? i know how to answer that

A. On Sue, we have approximately 300 bones, and that includes some that aren't mounted yet. Her belly ribs, called gastralia, eventually will be mounted. She has some missing bones — one foot and one hand — but we had the others, so we could cast them. The last 8 inches of her tail and a couple vertebrae were missing, and that was all. For scientific purposes, she was complete. She's the largest, most complete, and best preserved of any T. rex ever found.