Two Goods,X and Y,are Called Substitutes If

question 33

Multiple Choice

Two goods,X and Y,are called substitutes if

• A) an increase in P_X causes more Y to be bought.
• B) an increase in P_X causes less Y to be bought.
• C) an increase in P_Y causes less Y to be bought.
• D) an increase in income causes more of both X and Y to be bought.

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Definitions:

Prothrombin

A protein in blood plasma that is the precursor to thrombin and plays a key role in blood clotting.

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.