Introduction to Parasitology - Parasites

-Parasite:
--Organism metabolically dependent on another organism.

-Ectoparasite:
--Parasite living on the integument of the host.

-Endoparasite:
--Parasite living in the organs or tissues of the host.

-Obligatory parasite:
--Life cycle can't be complete without a parasitic phase.

-Facultative parasite:
--Life cycle can be completed without a parasiteic phase.
--May optionally include a parasitic phase.

-Aberrant parasite:
--Migrates to or develope in wrong part of the host's body.

-Oviparous parasite:
--Produces eggs which passes out of the body without hatching.
--Undeveloped egg when passed out => unembryonated egg.
--Developed and contains a larva => embyonate egg.

-Viviparous parasite:
--Lays active larvae instead of eggs.

-Ovi-viviparous parasite:
--Lays eggs which hatchs within the body of the host.
--Larvae passes out from the host, not eggs.