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This booklet will be about Bacteria, Fungi, Virus, and Protozoans.

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*Gel-like matrix composed of water, enzymes, nutrients, wastes, and gases. 

*Bacteria doesn't have a membrane or enclosed nucleus. 

* Warm, moist, protein-rich environment

*Coccus, Bacillus, Vibrio, Spirillum, Spirochete


*The hyphae of most fungi are divided into cells by internal walls called septa.

*Fungi are multicellular and eukaryotic. They are also heterotrophs, and gain nutrition through absorption.

*Fungi, like all living organisms, require three essential factors for life: air, food and water. Fungal growth in the indoor environment is dictated by the availability of these three factors.

*Basidiomycota, Ascomycota, Neocallimastigomycota, Blastocladiomycota, Glomeromycota, Chytridiomycota, Microsporidia.


*All viruses contain the following two components: 1) a nucleic acid genome and 2) a protein capsid that covers the genome. 

*microorganism that is smaller than a bacterium that cannot grow or reproduce apart from a living cell.

*Viruses pass into the environment from clinically ill or carrier hosts.

*Viruses can affect any part of the body or body system, and can cause infections such as the common cold, flu, gastroenteritis, chicken pox or herpes. The most common type of viral infections involves the respiratory tract.


*The organelles of protozoa have functions similar to the organs of higher animals. The plasma membrane enclosing the cytoplasm also covers the projecting locomotory structures such as pseudopodia, cilia, and flagella. 

*The nutrition of all protozoa is holozoic; that is, they require organic materials, which may be particulate or in solution. 

*Ciliates, Flagellates, Sporozoans, Sarcodines.