Worn-out red blood cells and tiny harmful bacteria are ingested by an immune system agent known as the:

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Worn-out red blood cells and harmful bacteria are ingested by macrophages, which are a type of immune system cell that engulfs and digests debris and foreign substances in the body. B lymphocytes are a type of white blood cell that produce antibodies against specific pathogens or foreign substances, oxytocin is a hormone involved in labor and bonding, and a carcinogen is a substance that can cause cancer.

Worn-Out Red Blood Cells and Tiny Harmful Bacteria Are Ingested