Giardia Lamblia Enters a Human or Other Host in What

Question

Giardia lamblia enters a human or other host in what form?
A) spore
B) endospore
C) cyst
D) worm
E) trophozoite

Accepted Answer

Giardia lamblia enters a host in the form of a cyst, which can survive outside the host until it is ingested. Once the cyst enters the warm and moist environment of the host's small intestine, it releases trophozoites, which are the active, feeding form of the parasite.