20 PROTISTS—THE SIMPLEST EUKARYOTES Chapter Outline IMPACTS, ISSUES: TINY CRITTERS, BIG IMPACTS 20.1 AN EVOLUTIONARY ROAD MAP 20.2 EVOLUTIONARY ANCIENT FLAGELLATES 20.3 SHELLED AMOEBAS 20.4 THE ALVEOLATES Ciliates Dinoflagellates Apicomplexans 20.5 MALARIA IN THE NIGHT—FEEDING MOSQUITOES 20.6 SINGLE‐CELLED STRAMENOPILES 20.7 BROWN ALGAE 20.8 GREEN ALGAE Chlorophytes Charophytes 20.9 RED ALGAE 20.10 AMOEBOID CELLS AT THE CROSSROADS SUMMARY SELF‐QUIZ CRITICAL THINKING Protists—The Simplest Eukaryotes 1