Antigen presentation is essential for the activation and clonal selection of ________
A) T cells
B) B cells
C) plasma cells
D) antigen-presenting cells
E) antibodies
A
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Immune surveillance refers to the body's ability to resist or eliminate potentially harmful foreign invaders
Indicate whether the statement is true or false
The human heart were experiencing hyperthermia, what do you think would be the effect on the heart rate?
A) The heart rate would increase and then return to normal. B) The heart rate would decrease. C) The heart rate would increase. D) The heart rate would not change.
What results from right ventricular failure?
A. Compression of the heart by serous fluid or blood in the pericardial cavity B. Inflammation of the endocardium C. Pulmonary congestion D. Systemic congestion E. Mitral valve prolapse
The constant appearance of new strains of influenza virus is an example of ________
A) evolution B) survivorship C) a model D) selection pressure E) success