A vaccine is effective because ________
A) the vaccine contains the antibodies necessary to fight infection
B) the vaccine contains the lymphocytes necessary to fight infection
C) the secondary response of the adaptive immunity is faster and more efficient the primary response
D) B-lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen
C) the secondary response of the adaptive immunity is faster and more efficient than the primary response
You might also like to view...
These muscles extend inferomedially from the superior rib to an adjacent inferior rib, and are involved in elevating the ribs during inhalation.
A. External intercostals B. Diaphragm C. Transversus thoracis D. Serratus posterior inferior E. Internal intercostals
HIV infection can be stalled with the use of powerful antibiotics.
Answer the following statement true (T) or false (F)
Which layer of the digestive tract consists of dense irregular connective tissue?
A) submucosa B) muscularis externa C) lamina propria D) muscularis mucosae E) mucosa
Vestibular neurons transmit nerve impulses along the vestibulocochlear nerve to all of the following sites except
A. the cerebrum. B. the cerebellum. C. the brainstem. D. the thalamus. E. All of these sites are destinations for neural information from the vestibular neurons.