An example of natural active immunity would be
A. chickenpox infection, followed by lifelong immunity.
B. chickenpox vaccine triggering extended immunity to chickenpox.
C. giving a person immune serum globulins to chickenpox virus after exposure to the disease.
D. a fetus acquiring maternal IgG to the chickenpox virus across the placenta.
Answer: A
You might also like to view...
Refer to the accompanying figure. The common anthropoid ancestor would be found at which position?
a. 13 b. 12 c. 11 d. 10 e. 9
Which of the following causes cervical dilation and helps stimulate uterine contractions during labor?
A) Progesterone B) Oxytocin C) Prostaglandins D) Estrogen E) Acetylcholine
Four of the following features are important evolutionary advancements in the evolution of the tree-dwelling primates. Which one is the exception?
A. Grasping hands and feet B. Depth perception C. Well-developed sense of smell D. The ability to see in 3D E. A large brain relative to body size
The number of people in the general population with type AB blood is relatively small. That is fortunate because these people make the least useful donors. Why are these people not as useful as other blood donors?
What will be an ideal response?