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Free traders maintain that world output is greatest if all countries are free to engage in voluntary exchanges.
Placenta
An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby while removing waste products.
Dendritic Cells
Immune cells that process antigen material and present it on the cell surface to the T cells, functioning as messengers between the innate and adaptive immune systems.
Blood Typing
A method to determine an individual ’s blood group, important for safe blood transfusions and understanding disease risk.
Antigens
Substances that trigger an immune response, prompting the production of antibodies by the body.
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