(c) Parasite kills the host
Work Step by Step
The following are the mechanisms used by parasites to evade their host defenses: 1. Causes host’s immune system to make antibodies that cannot react with the parasite’s antigens; 2. Through encystment; 3. Parasite changes its surface antigen faster than the host can make new antibodies; 4. Parasite invades host cells where it is out of the reach of host defense mechanisms.