Blood Is Classified into Different Types Based on the Presence

question 122

Multiple Choice

Blood is classified into different types based on the presence or absence of certain on the surface of a person's red blood cells.

• A)HLA molecules
• B)MHC molecules
• C)antibodies
• D)IL- 2 molecules
• E)antigens

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Definitions:

Free-Rider Problem

A problem intrinsic to public goods: Because people can enjoy the benefits of public goods whether or not they pay for them, they are usually unwilling to pay for them.

Remittances

Money sent by workers to people (usually family members) in their country of origin.

Illegal Immigrants

Individuals who enter or reside in a country without the required authorization or documents.

United States

A country consisting of 50 states and a federal district, recognized for its significant influence in global economics, politics, and culture.