Cie as level biology past papers phagocytes and lymphocytes are part of the body's cellular response to infection by pathogens. Fig. 6.1 shows the origin and maturation of phagocytes and lymphocytes. (a)name the site of origin of phagocytes and lymphocytes.
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Answer:Phagocytes - originate in bone marrow - produced throughout life here
Lymphocytes - produced before birth in bone marrow
ETA:
Lymphocytes; two types:
B-cells - remain in bone marrow, mature and spread throughout body concentrating on lymph/spleen
T-Cells - leave bone marrow and collect in the thymus where they mature
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