As the General Principle of Comparative Advantage Is Still Valid,complete

question 14

True/False

As the general principle of comparative advantage is still valid,complete specializatoin remains a realistic case.

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Definitions:

Antigen

A substance that, when introduced into the body, causes an immune response, often involving the production of antibodies.

Lymphocytes

Granular leukocytes formed in lymphoid tissue. Lymphocytes are generally small. See T Lymphocyte and B Lymphocyte.

Interferon

A protein that blocks viruses from infecting cells.

Chemical Barrier

A defense mechanism in the body that uses chemicals (such as acids or enzymes) to protect against pathogens and foreign substances.