Select the statement that correctly describes the differences between specific and nonspecific immunity.
A. Specific immunity is provided by epithelial tissues.
B. Only cells and tissues of both types of immunity express receptors for specific pathogens.
C. Nonspecific immunity is innate and genetically determined.
D. Nonspecific immunity relies on proper functioning of specific immunity for activation and recognition of pathogens.
Answer: C
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a. melanocytes b. keratinocytes c. dendritic cells d. Granstein cells e. All of these play a role in immune function.
Which statement best describes the importance of the biconcave shape of erythrocytes?
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The process by which bleeding is stopped is called ________
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