Identify and define the prefix in the following words. For example: external——its prefix is "ex-", which means "outside, away", you fill in the blanks with ex-; outside, away. 1. hyperactive 2. transfer 3. distant 4. posttraumatic 5. regurgitate 6. premenstrual 7. antibody 8. microsurgery 9. endoparasite 10. prognosis 11. telencephalon 12. sinistrocardia 13. mesoderm 14. symbiosis 15. semisolid