what are obligate parasites
An obligate parasite, or holoparasite, is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host.If an obligate parasite cannot obtain a host it will fail to reproduce.This is opposed to a facultative parasite, which can act as a parasite but does not rely on its host to continue its life-cycle.f an obligate parasite cannot obtain a host it will fail to reproduce. This is opposed to a facultative parasite, which can act as a parasite but does not rely on its host to continue its life-cycle.