EXERCISES, LESSON 5
INSTRUCTIONS: Answer the following exercises by marking the lettered response that
best answers the question, 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 of these 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.
1. American soldiers deployed to regions of the world in which disease-carrying
arthropods flourish may become ill while a native of the area may remain disease-free.
What is the reason?
2. In transmission of a disease agent, the agent spends a portion of its life cycle
within the body of an intermediate host. This is the
of disease transmission.
3. An arthropod travels from a manure pile to an outdoor latrine. The arthropod
continues traveling to an area containing eating utensils. In this area, the arthropod
deposits infectious organisms. This is termed
4. The most important group of arthropod disease vectors are _______________.
5. The causative agent of malaria is a mosquito-borne:
6. Malaria can be transmitted from person to person by:
Very close contact, such as sleeping together
Indirect contact (formites, eating utensils, etc.)
Transfusion of infected blood