Parasitism & Mutualism

Created by mdeerman 

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Ch. 15 Ecology terms.

symbiosis

close association between two species in which they live together on a permanent basis

infection

heavy load of parasites

disease

the outcome of an infection

microparasite

very small parasites that have a short generation time; includes bacteria & viruses

macroparasite

large parasite that can be seen with the naked eye; includes flatworms & ticks

ectoparasite

parasites that live on the outside part of the host's body

endoparasite

parasites that live inside the host's body

definitive host

host species in which the parasite becomes an adult & reaches maturity

intermediate host

host in which a parasite goes through some developmental stage of its life cycle

parasitism

relationship in which one organism benefits & the other is harmed

mutualism

relationship in which both organisms benefit

commensalism

relationship in which one organism benefits & the other is unaffected

parasite

organism that benefits in a parasitic relationship

host

organism that is harmed in a parasitic relationship

vector

organism, such as an insect, that acts as an intermediate host for a parasite but is not effected by it

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