Examlex
Which of the following best describes the Canadian economy?
IgA
Crucial for the immunity of mucosal surfaces, Immunoglobulin A functions as a key antibody type.
Viruses
Infectious agents that replicate inside the living cells of other organisms, consisting of RNA or DNA and a protein coat.
Epithelial Surfaces
Layers of cells that line the body’s surfaces and cavities, providing protection, secretion, and absorption functions.
Antigen Presenting Cells
Cells that display foreign antigens complexed with major histocompatibility complex molecules on their surfaces.
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