Question

practice 11
what are the physical barriers of innate immunity?
skin and mucous membranes.
antibodies and antigens
adaptive immunity and t - cells
digestive enzymes and bile
lymph nodes and spleen

Explanation:

Innate immunity's physical barriers prevent pathogens from entering the body. Skin acts as a physical shield. Mucous membranes (e.g., in respiratory, digestive tracts) trap pathogens with mucus. Antibodies/antigens relate to adaptive immunity. Adaptive immunity and T - cells are part of specific immune response. Digestive enzymes/bile are chemical barriers. Lymph nodes/spleen are lymphoid organs (not physical barriers).

Answer:

Skin and mucous membranes.