mollywolly99
mollywolly99
11.01.2021 • 
Biology

PLEASE ANSWER ASAP FOR BRAINBLEST A small shaped gland that produces progenitor cells, which mature into T-cells help other organs in the immune system grow properly *
A. immune system
B. Thymus
C. Bone marrow
D.B and T cells
E. Secondary lymphatic tissues

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