Humoral immunity involves all the following except:

A) antibodies.
B) antigens.
C) NK cells.
D) plasma cells.


C) NK cells.

Biology & Microbiology

You might also like to view...

The genotypic definition of race states that races are populations of the same species in which allele frequencies differ by ____

a. 15%-20% b. 85% c. 1 in 1000 nucleotides d. 25%-30% e. 5%-10%

Biology & Microbiology

Select the correct sequence of steps as energy is extracted from glucose during cellular respiration.

A. glycolysis ? citric acid cycle ? acetyl CoA ? electron transport chain B. glycolysis ? acetyl CoA ? citric acid cycle ? electron transport chain C. acetyl CoA ? citric acid cycle ? electron transport chain ? glycolysis D. electron transport chain ? citric acid cycle ? glycolysis ? acetyl CoA E. citric acid cycle ? electron transport chain ? glycolysis ? acetyl CoA

Biology & Microbiology

What is one consequence of long-term exposure to carbon monoxide, found in environmental tobacco smoke?

A) damage to hemoglobin B) protection from bronchitis C) higher-than-average birth weights of babies born to smoking mothers D) diminished brain function in infants and children

Biology & Microbiology

How would you recognize an antibiotic-producing soil bacterium on a plate crowded with other bacteria? The bacterial colony producing the antibiotic would be __________.

a. surrounded by a clear area b. red or yellow c. star-shaped d. visible as masses called mycelia e. characterized by pseudopods

Biology & Microbiology