Individuals Who Are Heterozygous for Sickle-Cell Anemia Have a Greater

question 109

Multiple Choice

Individuals who are heterozygous for sickle-cell anemia have a greater resistance to

• A) malaria.
• B) diphtheria.
• C) cholera.
• D) typhoid fever.
• E) all of these.

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Definitions:

Account Surpluses

Situations where a country's exports exceed its imports over a given period, leading to a positive balance of trade.

International Gold Standard

A monetary system in which the standard economic unit of account is based on a fixed quantity of gold, facilitating international trade and investment.

Exports

Products or services traded or sold from one nation to another.

Imports

Purchased goods or services brought into one country from another.