Examlex
Which of the following compounds is secreted by the human stomach?
Antibody
A protein produced by the immune system that recognizes and binds to foreign substances, such as bacteria and viruses, to help in their destruction.
Antigen
A substance that provokes an immune response, leading to the production of antibodies.
Erythropoietin
A hormone produced by the kidneys that stimulates red blood cell production in the bone marrow.
Monocyte
A type of white blood cell that is part of the immune response, involved in the removal of pathogens and dead or damaged cells from the blood.
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