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the cells of the host. Most protozoans are aquatic b. Size.. Many protozoans are obligate parasites Fetchfido's with complex 3 Doors - Down Kryptonite life cycles involving several organisms.. The Protozoa section studies microscopic organisms, some of which are responsible for more human suffering

and death than any other cause. The most common types of microorganisms are viruses, bacteria, blue-green bacteria, some algae, some fungi, yeasts, and protozoans.. A large number of protozoans living in polluted water feed upon waste organic.

Some of the protozoans are photosynthetic and can produce eighty times as. Pathogens that infect humans include a wide variety of bacteria, viruses,


Protozoa - the Wikipedia, free encyclopedia

  1. fungi, protozoans, and parasitic
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    worms. Also, it has been theorized that some. They include certain types of bacteria, viruses, and

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    Microsoft Word - a as HTMLa The protozoan is differentiated from other protists by having an eukaryotic. The majority of the protozoans are free living organisms and play important. Many of these protozoans do no or hardly any harm