Protozoa: general

Single-celled animal-like organisms

Protozoa

Active feeding and growing stage

Trophozoite

Protective covering stage

Cyst

How a trophozoite multiplies

Binary fission

Cyst type that only protects the parasite

Protective cyst

Cyst type where nuclei divide inside

Reproductive cyst

Transmission through kissing or sexual contact

Direct transmission

Transmission through cysts in food and water

Fecal-oral

Transmission through blood-sucking arthropods

Vector borne

Two stages of development of protozoa

Trophozoite and cyst