Protozoans can reproduce either sexually or asexually

Reproduction of Protozoans

- Plasmalemma
- Pellicle
- Ectoplasm
- Endoplasm
- Cytostome
- Cytoproct
- Flagella
- Cilia
- Contractile Vacuoles

Structures of Protozoan Cells

Protozoa are unicellular eukaryotic microorganisms that are nonphotosynthetic and motile. They exist in a wide variety of environments and can be either free-living or parasitic.

Protists have been historically informally grouped into three categories: 
- "Animal-Like" Protozoans
- "Plant-Like"  Algae
- "Fungus-Like" Protists

Groups of Protists

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

"Animal-Like" Protozoans

Algae are autotrophic protists that can be unicellular or multicellular. They  are responsible for about 70% of the oxygen production in aquatic environments.

"Plant-Like" Algae

Lichens are nonpathogenic microorganism that is a combination of green algae and fungus. They can be found commonly slowly growing on rocks or plants.

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