Question

(a) Name the types of lymphoid organs, lymph nodes and thymus are.
Explain the role played by them in causing immune response.
(b) Differentiate between innate immunity and acquired immunity.
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Answer 1

Answer:

Spleen– It is the largest lymphatic organ in the body. ... It is the main lymphoid organ which produces the blood cells, including the lymphocytes. In the bone marrow, the immature lymphocytes differentiate into antigen sensitive lymphocytes. Thymus- This is the organ where the T-cells mature