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Last Activity: 6 Years ago
Ans 2 is correct as some of the protozoans like amoeba are predators.They grazebiofilmsfor bacteria ingest and digest them and multiply. Whereas some the protozoans like Plasmodium is a parasite which causes malaria.
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Last Activity: 3 Years ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago