Parasitology Exam 1 and answers
Autogenic parasitecomplete life cycle in a single ecosystem i.e freshwater
isopods
allogenic parasiteslife cycle in more than one ecosystem i.e lyme bacteria
Obligatory parasiteAn organism that MUST live as a parasite, it is incapable of
living on it...
Parasitology Exam 1 and answers
Autogenic parasite✔✔complete life cycle in a single ecosystem i.e freshwater
isopods
allogenic parasites✔✔life cycle in more than one ecosystem i.e lyme bacteria
Obligatory parasite✔✔An organism that MUST live as a parasite, it is incapable of
living on its own
faculative parasite✔✔some stage is free living but eventually requires a host
opportunistic parasire✔✔an organism that may parasitize but doesn't need to in
order to complete its life cycle (typically don't cause disease)
microparasite✔✔rapid generation time relative to host, difficult to quantify number
present, often intracellular i.e lyme bacteria
macroparasite✔✔larger but still smaller than the host, can quantify load i.e ticks,
fleas
hyperparasite✔✔parasite of a parasite i.e protozoan in flea in dog
parasatoid✔✔spend a significant amount of time with a single host, toe boundary
between predation and parasitism i.e parasitoid wasp
cleptoparasite✔✔steals or scrounges food or other resources obtained by another
organism
social parasites✔✔integrate or invade i.e laying eggs in another birds nest or
continually stealing resources
definitive host✔✔an organism that harbors the adult, sexually mature form of a
parasite
intermediate host✔✔an organism that supports the immature or nonreproductive
forms of a parasite.
accidental host✔✔one that can serve as a host, but is not the usual host in the
parasites' life cycle
paratenic host✔✔host that helps spread a parasite without the parasite developing
within it i.e bridges ecological gap
reservoir host✔✔harbor parasite allowing it to grow/multiply but the host is
unharmed, not intermediate or definitive host
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