Kingdom PROTISTA Protozoans Algae

General Characteristics All are either unicellular or colonial. None produce true tissues. Contain approximately 125,000 different organisms. Divided into two major groups: protozoans & algae (not part of the classification system)

Protozoans microscopic, unicellular, motile organisms most are aquatic; many are found in the soil large number are parasitic most obtain food from other sources, some can make their own food

Algae every natural water supply contains some type of algae most are microscopic unicellular or colonial organisms (some reach 100 feet) they may appear to be floating mats of green slime or velvety coatings on submerged rocks most make their own food - by photosynthesis

Protozoans are divided into two phyla based on their means of locomotion Phylum Ciliophora - ciliates Phylum Sarcomastigophora – amebas, sarcodines, & flagellates

Phylum Ciliophora Paramecium

Phylum Ciliophora Euplotes Stylonychia

Phylum Ciliophora Stentor

Collotheca rotifer Phylum Ciliophora

Lecane rotifer Phylum Ciliophora

Phylum Sarcomastigophora Amoeba

Phylum Sarcomastigophora Amoeba

Phylum Sarcomastigophora Amoeba

Phylum Sarcomastigophora Euglena

Haematococcus a flagelate Phylum Sarcomastigophora

Noctiluca scintillans Phylum Sarcomastigophora

Algae are divided into four phyla based on the various pigments they contain Phylum Chrysophyta - golden-brown algae, yellow-green algae, & diatoms Phylum Chlorophyta - green algae Phyium Phaeophyta - brown algae Phylum Rhodophyta - red algae

Phylum Chrysophyta Asterionella a diatom

Phylum Chrysophyta a diatom

Phylum Chlorophyta Deadmans Fingers – Codium paple

Phylum Chlorophyta Sea Lettuce – Ulva

Phylum Chlorophyta Volvox

Phylum Chlorophyta Desmidium swartzii

Phylum Chlorophyta Micrasterias rotata

Phylum Chlorophyta Micrasterias truncata

Phylum Phaeophyta Sargassum

Phylum Rhodophyta Chondrus

Phylum Rhodophyta Corallina officinalis