21. The protozoan organism Plasmodium falciparum is a major causative agent of malaria. 22. Neutral mutations must be separated from causative mutations, via extensive breeding. 23. Bacteria, fungi, protozoa or viruses are still the causative agents. 24. Other movements consider men primarily the causative agents of sexism. 25. Research in rats has shown that nylon flocking is a causative agent. 26. Five lives were lost and miscommunication was the causative factor for the crash. 27. The literature indicates that arsenic exposure is causative in the pathogenesis of diabetes. 28. This is often an extensive or causative development of the basic lexical meaning. 29. Causative morphology is also used in some passive contexts:30. The relative importance of the various identified possible causative factors is also debated.
