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