Enhanced immune responses to subsequent exposures to an antigen to which the body has already been exposed are known as ________ responses.
A. third-degree immune
B. allergic
C. primary immune
D. memory
E. autoimmune
Answer: D
Biology & Microbiology
You might also like to view...
Carbon dioxide is the only greenhouse gas produced by anthropogenic activities
Indicate whether the statement is true or false.
Biology & Microbiology
Which of the following factors influence the
opening and closing of the stomata? a. rate of photosynthesis b. water availability c. concentration of carbon dioxide in the leaf d. light intensity e. all of these
Biology & Microbiology
________ is directional growth responses of plants to a unidirectional source of light.
A. Dormancy B. Phototropism C. Thermotropism D. Gravitropism E. Thigmotropism
Biology & Microbiology
Clavulanic acid inhibits
A. formation of peptidoglycan cross linkages. B. cell membrane synthesis. C. peptidoglycan synthesis. D. beta-lactamase activity.
Biology & Microbiology