Parasitology Exam 1 and answers
A close relationship between two species that benefits at least one of the
species.✔✔symbiosis
each partner in symbiosis✔✔symbiont
extremely short term relationship
One symbiont benefits at the expense of the other✔✔Predator-Prey symbiotic
relationship
Phor- To carry
Smaller member of the relationship is mechanically carried about by the larger
member. Travel buddies✔✔Phoresis (symbiotic relationship)
both organisms benefit
Often obligatory- one cannot survive without the other✔✔mutualism (symbiotic
relationship)
One organism receives the benefits while the other is not affected
Facultative vs obligatory✔✔Commensalism (symbiotic relationship)
Two organisms of different species in which on member lives on or within the other
and may cause harm
Parasite becomes metabolically dependent on the host✔✔Parasitism (symbiotic
relationship)
Infectious bovine keratoconjunctivitis in cattle (pink-eye or New Forest disease)
carried from one cow to the other on the sticky potpads of the face fly, Musca
autumanlis✔✔Moraxella bovis
Parasite present on host and is potentially pathogenic (harmful), but animal exhibits
no outward signs✔✔Parasitiasis
Parasite present on host and exhibits obvious outward signs and
harm✔✔Parasitosis
A parasite that feeds on the external surface of a host.
Produces infestation on the host✔✔Ectoparasite
parasite lives inside of the host, feeds on blood, soft tissues, or ingested food of host
, Produces infection within the host✔✔Endoparasitism
Chemical compounds used to treat specific internal and external
parasites✔✔Parasiticides
used to treat worm infections
Roundworms, tapeworms, flukes, and thronyheaded worms
Ex. pyrantel, praziquantel✔✔Anthelmintics
Compounds developed to kill mites and ticks
Ex. Pyrethrin✔✔Acaricides
a chemical that kills insects✔✔Insecticides
Chemical compounds developed to kill protozoan organisms
Ex. Albon✔✔Antiprotozoals
Parasite that has wandered from its usual site of infection into an organ or location in
which it does not ordinarily live; also called erratic parasite.✔✔Aberrant parasite
A parasite in a host in which it does not usually live✔✔Incidental parasite
Organisms that are normally are free-living, but can obtain nutrients from a host
Become parasitic in some hosts✔✔Facultative parasites
A parasite that must lead a parasitic existence✔✔Obligatory parasite
A parasite that makes frequent visits to a host to obtain nourishment
Ex. Female mosquito✔✔Periodic parasite
A creature or object that is mistaken for a parasite
Ex. pollen, artifacts✔✔Pseudoparasite
development of a parasite through its various stages
Every parasite has at least one definitive host
May have one or more intermediate hosts✔✔Life cycle of a parasite
an organism that supports the immature or nonreproductive forms of a parasite.
A close relationship between two species that benefits at least one of the
species.✔✔symbiosis
each partner in symbiosis✔✔symbiont
extremely short term relationship
One symbiont benefits at the expense of the other✔✔Predator-Prey symbiotic
relationship
Phor- To carry
Smaller member of the relationship is mechanically carried about by the larger
member. Travel buddies✔✔Phoresis (symbiotic relationship)
both organisms benefit
Often obligatory- one cannot survive without the other✔✔mutualism (symbiotic
relationship)
One organism receives the benefits while the other is not affected
Facultative vs obligatory✔✔Commensalism (symbiotic relationship)
Two organisms of different species in which on member lives on or within the other
and may cause harm
Parasite becomes metabolically dependent on the host✔✔Parasitism (symbiotic
relationship)
Infectious bovine keratoconjunctivitis in cattle (pink-eye or New Forest disease)
carried from one cow to the other on the sticky potpads of the face fly, Musca
autumanlis✔✔Moraxella bovis
Parasite present on host and is potentially pathogenic (harmful), but animal exhibits
no outward signs✔✔Parasitiasis
Parasite present on host and exhibits obvious outward signs and
harm✔✔Parasitosis
A parasite that feeds on the external surface of a host.
Produces infestation on the host✔✔Ectoparasite
parasite lives inside of the host, feeds on blood, soft tissues, or ingested food of host
, Produces infection within the host✔✔Endoparasitism
Chemical compounds used to treat specific internal and external
parasites✔✔Parasiticides
used to treat worm infections
Roundworms, tapeworms, flukes, and thronyheaded worms
Ex. pyrantel, praziquantel✔✔Anthelmintics
Compounds developed to kill mites and ticks
Ex. Pyrethrin✔✔Acaricides
a chemical that kills insects✔✔Insecticides
Chemical compounds developed to kill protozoan organisms
Ex. Albon✔✔Antiprotozoals
Parasite that has wandered from its usual site of infection into an organ or location in
which it does not ordinarily live; also called erratic parasite.✔✔Aberrant parasite
A parasite in a host in which it does not usually live✔✔Incidental parasite
Organisms that are normally are free-living, but can obtain nutrients from a host
Become parasitic in some hosts✔✔Facultative parasites
A parasite that must lead a parasitic existence✔✔Obligatory parasite
A parasite that makes frequent visits to a host to obtain nourishment
Ex. Female mosquito✔✔Periodic parasite
A creature or object that is mistaken for a parasite
Ex. pollen, artifacts✔✔Pseudoparasite
development of a parasite through its various stages
Every parasite has at least one definitive host
May have one or more intermediate hosts✔✔Life cycle of a parasite
an organism that supports the immature or nonreproductive forms of a parasite.
