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
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.
Bacilli is an example of a group of one-celled plants called
Communicable diseases that are spread by coughing and sneezing are called:
Ensuring a supply of purified water is especially important in controlling:
Sexually transmitted diseases.