Answer the following question given this paragraph: 

Parasitic fungi often cause illness and may eventually kill their host. They are the major cause of disease in agricultural plants. Fungi also parasitize animals, such as the insect pictured in Figure below . Fungi even parasitize humans. Did you ever have athelete’s foot? If so, you were the host of a parasitic fungus.


Q: Parasitic fungi often cause illness and may eventually do what to their hosts?


A:
kill them