Answer:
Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel)
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I believe it would be the leaves because that helps collect water! :)
Answer:
The answer is false viruses are 1/10th the size of cells
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