Which of the following is not a characteristic of B cells?
A) They carry out cell-mediated immunity.
B) They originate in bone marrow.
C) They are responsible for the memory response of humoral immunity.
D) They are responsible for antibody formation.
E) They have antibodies on their surfaces.
C) They are responsible for the memory response of humoral immunity.
You might also like to view...
As the global concentration of carbon dioxide increases, there is great potential for direct impact on the world's
A. climate. B. biodiversity. C. biogeochemistry. D. ozone layer.
The equation, C6H12O6 + 6O2 ? 6CO2 + 6H2O (ATP + Heat), describes which of the following processes?
A. photosynthesis B. cell respiration C. cell fermentation D. glycolysis E. anaerobic metabolism
________'s concept of preparedness suggests that people are biologically prepared by their evolutionary history to acquire fears more eaily than others.
Fill in the blank(s) with the appropriate word(s).
Bacteria metabolize sugars and they create ________ that can eat away at the ________ to cause dental caries
A) toxins; dentin B) chemicals; pulp C) proteins; pulp D) spores; gums E) acids; enamel