1. Phylum Protozoa

2. Taxonomy
Kingdom Animalia
Phylum Protozoa
protozoans

3. General Characteristics
Unicellular and most are microscopic
Free-living or live in colonies
All symmetries are present
No germ layers are present
No organs or tissues, only specialized organelles and a nucleus
Can be parasitic or cause disease
Move using flagella, cilia or pseudopodia
Autotrophic, heterotrophic or filter feeders
Live on land or in the water or inside plants or animals
Reproduce both sexually and asexually

4. Protozoans Kinetoplastids Parasites to plants and animals
Live on land and in the water and in blood or tissue
** Cause African sleeping sickness **
African sleeping sickness

5. Protozoans Giardia The most common human parasite
Found in soil and water
giardia

6. Protozoa
Plasmodium
Parasite to animals
**causes malaria**
plasmodium

7. Protozoans
Trichomona
Most common human STD pathogen

8. Protozoa Ciliates free-living Common in all waters and soils
Use cilia to move

9. Protozoa Amoebas Free-living found in water and soil
Use pseudopod for moving
amoeba

10. Protozoa Paramecium Free-living Live in water or damp soil
Use cilia to move

12. Ecological Importance
Simplest animal life form
Bottom of the food chain in many ecosystems
Cause many diseases and are parasites to plants and animals
protozoans