Parasite Vocabulary Chapter 10 Microbiology

Antibiosis  A condition in which two organisms cannot coexist

Arachnids  Members of the class arthropods that include spiders and mites. The characteristically have four pairs of walking legs and no wings

Ciliates  Microorganism (protozoa) possessing cilia

Flagella  Flexible whip-like structure found on microorganisms, used as an organ of locomotion Giardiasis

Helminthes  Parasitic worm; a nematode (roundworm) or trematode (fluke)

Hookworm  Parasitic roundworm that enters the body through the skin and migrates to the intestine where it attached itself to the wall of the intestine with its hooklets and sucks blood for its food

Hosts  Animal that harbors and provides sustenance for another organism

Infestation  Living on or within the skin of the host by animal parasites, usually insects

Mastigophora  A subphylum of protozoa that have one or more flagella and a centrally located nucleus Page 171

Microfilaria  Prelarval stage of the Filariodea family that are found in the blood of humans and in the tissues of the vector

Nematodes  Roundworm

Neutralism  Relationship between two organisms in which neither one affects the other

Parasites  Organisms that live on or within another living organisms at whose expense it obtains some advantage

Pediculus  Genus of lice (head lice)

Protozoa  Subkingdom including unicellular eukaryotic organisms

Symbiosis  Mutually beneficial relationship between two or more organisms of different species

Tapeworm  Parasitic cestode worm that has a flattened ribbon-like body

Trematodes  A class of flatworms called flukes that are broad and leaf shaped