Parasite VocabularyChapter 10

Microbiology

AntibiosisA condition in which two organisms cannot coexist

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

CiliatesMicroorganism (protozoa) possessing cilia

FlagellaFlexible whip-like structure found on microorganisms, used as an organ of locomotion

Giardiasis

HelminthesParasitic worm; a nematode (roundworm) or trematode (fluke)

HookwormParasitic 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

HostsAnimal that harbors and provides sustenance for another organism

InfestationLiving on or within the skin of the host by animal parasites, usually insects

MastigophoraA subphylum of protozoa that have one or more flagella and a centrally located nucleus

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MicrofilariaPrelarval stage of the Filariodea family that are found in the blood of humans and in the tissues of the vector

NematodesRoundworm

NeutralismRelationship between two organisms in which neither one affects the other

ParasitesOrganisms that live on or within another living organisms at whose expense it obtains some advantage

PediculusGenus of lice (head lice)

ProtozoaSubkingdom including unicellular eukaryotic organisms

SymbiosisMutually beneficial relationship between two or more organisms of different species

TapewormParasitic cestode worm that has a flattened ribbon-like body

TrematodesA class of flatworms called flukes that are broad and leaf shaped