EXERCISES, LESSON 1
INSTRUCTIONS: Answer the following exercises by marking the lettered response that
best answers the exercise, by completing the incomplete statement, or by writing the
answer in the space provided at the end of the exercise.
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers. For each exercise answered incorrectly,
reread the material referenced with the solution.
All of the structural stages seen in the genera Leishmania and Trypanosoma may
be found in a human host.
Chaga's disease is transmitted by:
a. The bite of a Tse-Tse fly.
b. The bite of a reduviid bug.
The feces of a reduviid bug.
d. Ingestion of infected game animals.
Which of the following statements best describes a phase in the life cycle of
a. The infective form is injected by the bite of a sandfly.
b. Phagocytic RE cells ingest the infective form.
The promastigote stage occurs in the gut of the intermediate host.
d. All of the above.