1. Lymph vessels 2. Lymph nodes 3. Bone marrow 4. Thymus 5. Innate immunity 6. Adaptive immunity 7. Mast cells 8. Cytotoxic T cells 9. Antibody 10. Antigen A. In the invading pathogen B. They are activated by antigen presenting cells C. Released by B lymphocytes D. T cells mature here E. Skin, sebaceous glands secretions, saliva F. Mediated by b- lymphocytes and t lymphocytes G. Result from the duplication of b lymphocytes H. Merge into lymphatic ducts I. The site of T lymphocytes and B lymphocytes production J. Release toxic substances that destroy pathogens Match letters with numbers.
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