Question

question 9 1.67 pts the clumping of foreign cells that occurs when antibodies cross - link their antigens is known as
agglutination.
opsonization.
fixation.
neutralization.
precipitation.

Explanation:

Agglutination is the process where antibodies cross - link antigens on foreign cells, causing them to clump together. Opsonization marks pathogens for phagocytosis. Fixation relates to complement activation. Neutralization blocks pathogen activity. Precipitation involves the formation of insoluble complexes with antibodies and soluble antigens.

Answer:

Agglutination.