- *Ascaris lumbricoides*
- *Necator americanus*
- *Enterobius vermicularis*
- *Toxocara canis* and *T. cati*
- *Trichinella spiralis*
- *Dirofilaria immitis*

Parasitic species of Roundworms (Nematodes)

A diverse group of unsegmented parasitic worms that contain their own full, tube shaped digestive system.

Georgetown University

- Flatworms (platyhelminths)
- Roundworms (nematodes)

Groups of Helminths

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

Group of worms characterized by their symmetrical, flat appearance, and the lack of blood vessels and extensive digestive tract. 

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