EXERCISES, LESSON 2
INSTRUCTIONS. The following exercises are to be answered by marking the lettered
response that best answers the question or best completes the incomplete statement or
by writing the answer in the space provided.
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers.
The substance which affords immunity against a disease is known as an
Immunity acquired by catching a disease such as mumps or chickenpox
(varicella) is said to be:
Immunity acquired by inoculation with antibodies which were performed in the
body of a laboratory animal is said to be:
Active immunity has a ___________ residual effect than passive immunity.