Answer:
Answer: structural organization. Complex organisms are highly organized assemblies of specialized cells. To maintain integrity, cells are surrounded by lipid membranes that form a shell and separate the cell interior from the environment
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Explanation:
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The correct answer is (c) discover antigens in body fluids.
B lymphocytes act as antigen presenting cells that recognizes and displays the antigen to the white blood cells. These cells process the antigens that are present in body fluids. Professional antigen presenting cells includes B-lymphocytes, macrophages, dendritic cells, etc.
