The document summarizes three phyla of plant-like protists: Euglenophyta, Chrysophyta, and Pyrrophyta. Euglenophyta includes the genus Euglena, which has an eyespot and flagellum and can perform both photosynthesis and consume organic matter. Chrysophyta contains diatoms, which have glass-like cell walls made of silica. Pyrrophyta includes dinoflagellates, which can cause bioluminescence and red tides through toxin production.