One example of survival from the book that immedately comes to mind is Mayella's survival instinct. Mayella is stuck in a less than desirable situation. She literaaly has nothing..... a young woman with no future except caring for her father and siblings. She buckles to her father's demands and stands behind the rape accusation because if she doesn't...... it means further beatings. She does what's necessary to survive in her own little hell on Earth. She's terrified of her father and knows if she doesn't do as he asks, it will only get worse for her. To capitulate to her father's wishes is a form of survival.