Life cycle patterns One-host form 1. One stage form -Trophozoite 2. Two stage form Trophozoite cyst TWo-host form 1 Mammals mammals 2. Mammals<> insect vectorsLife cycle patterns One-host form 1. One stage form – Trophozoite 2. Two stage form – Trophozoite & Cyst Two-host form 1. Mammals mammals 2. Mammals insect vectors