# 3Multiple ChoiceHow is the protozoan Giardia transmitted to humans?Through mosquito bitesBy eating contaminated foodThrough contaminated waterBy direct contact with an infected person
# 4Multiple ChoiceWhich protozoan is known for causing sleeping sickness?TrypanosomaPlasmodiumGiardiaAmoeba
# 5Multiple ChoiceWhat is the main characteristic of protozoans?They have complex organ systemsThey are multicellularThey are single-celled and can move independentlyThey are all plant-like
# 6Multiple ChoiceWhich part of the body does the protozoan Entamoeba histolytica affect?LungsLiverBrainIntestines
# 7Multiple ChoiceWhat is a common method to prevent diseases caused by protozoans?Washing hands regularlyTaking antibioticsUsing insect repellentsDrinking boiled water
# 8Multiple ChoiceWhich of the following is a characteristic of the protozoan Toxoplasma gondii?It is transmitted by mosquitoesIt only affects plantsIt can form cysts in animal tissuesIt is visible to the naked eye
# 9Multiple ChoiceWhat organ does the protozoan Leishmania primarily affect in humans?SkinHeartLiverKidneys