1. resembling man or man-like.   Hint First letter clue   2. sealed by fusion to be air-tight.   First letter clue   3. related to embryo or undeveloped.   First letter clue   4. based on experiment, not theory.   First letter clue   5. improving race by selective breeding.   First letter clue   6. cancer-causing.   First letter clue   7. not conventional.   First letter clue