Which of the following are primary lymphoid organs? a.bone marrow and thymus b.appendix and spleen c.lymph nodes and tonsils d.spleen and thymus

asked Feb 10, 2020 62.8k views

4 votes

Which of the following are primary lymphoid organs?

a.bone marrow and thymus
b.appendix and spleen
c.lymph nodes and tonsils
d.spleen and thymus

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4 votes

Answer:

a.bone marrow and thymus

Ruslan Zinovyev answered Feb 14, 2020