Not just in the term "cystectomy," but with any medical term that ends with "-ectomy," refers to the removal of an object from one's body (often surgically). I hope this helped !
Can u show a pic of the question
Answer:
Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.