How can we help?

You can also find more resources in our Help Center.

15 terms

Parasitism & Mutualism

Ch. 15 Ecology terms.
STUDY
PLAY
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