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27 Cards in this Set
- Front
- Back
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Symbiosis
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The living together of any two organisms – association that exists between organisms of different species |
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sym |
means together |
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biosis |
means living
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Predator/prey |
usually a short relationship results in harm or death to one organism to the benefit of the other ex. fox kills a rabbit lion
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Phoresis |
One member of the relationship is carried around by the second
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Phore |
Means to carry
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Mutualism |
both members of the association benefit from it
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Commensalism |
One member of the assocation benefits and the other ember neither benefits nor is harmed
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Parasitism |
One member of the association (the parasite) lives in or on the second member 1. the parasite benefits from the relationship 2. the host is harmed by the relationship 3. the parasite is dependent on the host |
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Definitive host |
The host in which a parasite reaches its sexual maturity
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Intermediate Host |
the host n which some development of the parasite occurs but in which it does not reach maturity
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Transport or paratenic Host |
The host in which a parasite may enter and undergoes no development but continues to stay alive and be infective to a definitive host
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Reservoir Host |
an animal other than the animal being treated for infection that is normally infected with that parasite in the environment |
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Ectoparasite |
Lives ON the body of the host
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Endoparasite |
Lives INSIDE the body of the host |
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Vector |
any agent such as water or an insect that transmits a disease organism |
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Biological |
Vector which a disease organism lives or develops |
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Mechanical Vector |
Vector that transmits disease organisms by mechanical means only |
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Life cycle |
The entire life cycle of the parasite is completed in a single host followed by transmission of the offspring to another host |
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Indirect |
two or more hosts are required to complete the life cycle of the parasite followed by the transmission of the offspring to another host |
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Prepatent period |
the period of time from introduction of the infective form from until the parasite can be demonstrated by recognized laboratory techniques
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Erratic or aberrant parasite |
parasite that wanders away from its usual site of infection to an organ or location where it does not ordinarily live |
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Incidental parasite |
when a parasite occurs in a host in which it does not usually live |
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Facultative parasite |
organisms that can be free living or can live parasitically. Ex. many nematodes |
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Obligarory parasite |
parasite that can not live on its own -must live in or on a host. The most common type of veterinary parasite are obligatory. |
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Periodic parasite |
parasite does not live on or in the host all the tim makes periodic visits to host usually to feed ex. female mosquito |
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Psudoparasite |
creature or object that are not parasitic but are erroneously identified as parasites ex. things seen in fecal flotations that may look like parasite eggs (pollen, grains etc) |
