1. protozoans, algae, molds, and mildews
Kingdom Protista
protozoans, algae, molds, and mildews

2. Protozoans
Heterotrophic
Unicellular
Animal-like (-zo-)

3. Phylum Rhizopoda Move by pseudopodia Example is Amoeba
can cause dysentery

4. Phylum Zoomastigina Trichonympha pictured at right
Has mutualistic relationship with termites that allows them to digest wood
Note flagella

5. Phylum Zoomastigina
Pictured at left is a sample of human blood infected with Trypanosoma protozoans
Trypanosoma causes African sleeping sickness

6. Phylum Ciliophora Pictured at left is Paramecium
note nucleus, oral groove and cilia

7. Phylum Sporozoa Parasitic Reproduce by spores
Cause malaria in millions of people worldwide annually

8. Plasmodium

9. Malaria How common is malaria?
The World Health Organization estimates that yearly million cases of malaria occur and more than 1 million people die of malaria. About 1,200 cases of malaria are diagnosed in the United States each year. Most cases in the United States are in immigrants and travelers returning from malaria-risk areas.

10. Malaria What are the signs and symptoms of malaria?
Symptoms of malaria include fever and flu-like illness, including shaking chills, headache, muscle aches, and tiredness. Nausea, vomiting, and diarrhea may also occur. Malaria may cause anemia and jaundice (yellow coloring of the skin and eyes) because of the loss of red blood cells. Infection with one type of malaria, Plasmodium falciparum, if not promptly treated, may cause kidney failure, seizures, mental confusion, coma, and death.
How soon will a person feel sick after being bitten by an infected mosquito?
For most people, symptoms begin 10 days to 4 weeks after infection, although a person may feel ill as early as 8 days or up to 1 year later. Two kinds of malaria, P. vivax and P. ovale, can relapse; some parasites can rest in the liver for several months up to 4 years after a person is bitten by an infected mosquito . When these parasites come out of hibernation and begin invading red blood cells, the person will become sick.

11. Malaria worldwide

12. The vector - Anopheles

13. Algae Through photosynthesis produce about 50% of the Earth’s oxygen.
Most are autotrophic
Important as base of many food chains

14. Phylum Euglenophyta
Called euglenoids
Unicellular
Have flagellum

15. Euglenoids At right is Euglena note the single flagellum
Usually photosynthetic, but when kept in darkness becomes heterotrophic

16. Phylum Bacillariophyta
Called diatoms
Shells made of silica
Some have complex form

17. Diatoms

18. More diatoms

19. Had enough diatoms yet?

20. Phylum Dinoflagellata
2 flagella at right angles
Mostly marine organisms
Cause red tide

21. Dinoflagellates

22. More dinoflagellates

23. Phylum Rhodophyta Called red algae “seaweed”
Red color allows it to live deeper in the ocean and absorb green and blue wavelengths of light

24. Red algae

25. Phylum Phaeophyta

26. Brown algae

27. Phylum Chlorophyta
Green algae
photosynthetic

28. Green algae

29. Slime molds

30. Downy Mildew

31. Phytophthera infestans
Mildew that caused the Irish Potato Famine
Infects roots, tubers and leaves of potato plants (and other plants)