How many species of protists have been identified? The word protist means that these organisms are? Protozoans, slime molds, water molds and algae all are? Protists are polyphyletic. It means that they have? Which one of the following is not true about protists? The association between two organisms in which both are benefited is called as? The relationship between two organisms in which one is benefited and the other is harmed is called as?