Emil von Behring and Shibasaburo Kitasato demonstrated the body's defense mechanism against disease known as
A. Humoral immunity (antibody mediated)
B. Cell-mediated immunity
C. Both humoral immunity and cell-mediated immunity
D. Neither humoral immunity nor cell-mediated immunity
Ans: A. Humoral immunity (antibody mediated)
You might also like to view...
Which of the following mutations is most likely to cause a phenotypic change?
A) a duplication of all or most introns B) a large inversion whose ends are each in the same region between genes C) a nucleotide substitution in an exon coding for a transmembrane domain D) a single nucleotide deletion in an exon coding for an active site E) a frameshift mutation one codon away from the end of the nontemplate strand
In the vertebrate kidney, reabsorption and secretion take place in the renal tubules; after that, the filtrate enters the collecting ducts as ____
Fill in the blank with the appropriate word.
Compare the structures of animal and plant cells. How are they different? How are they the same?
What will be an ideal response?
The (body louse/cat flea/dog tick) is the primary vector of epidemic typhus
What will be an ideal response?