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.
How are waste products removed from the body's cells?
2. The solid portion makes up what percentage of the blood?
a. 55 percent.
b. 45 percent.
d. 73.5 percent.
The spleen is an important source of:
b. Granular leukocytes.
d. Red bone marrow.