Components participating in the classical activation pathway is ()
A. C1q
B. IgG4
C. IL-2
D. H factor
E. B factor
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Which scientist applies cowpox vacacine preventing smallpox firstly ()?
A. Warner
B. Jenner
C. Burnet
D. Mitchell
E. Claman
The immunity refers to the natural ability of the body to ()
A. Protect from certain diseases
B. Fight against specific disease
C. Remove old or dead cells
D. kill and remove pathogen
E. Recognize and remove antigens
A characteristic of adaptive immunity is ()
A. Redness
B. Inflammation
C. Lack of specificity
D. Memory
E. All of the above
Humoral immunity refers to which of the following elements ()
Ab
B. Macrophages
Complement
D. A and C
E. All of the above
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