The Major Ingredient in Hemoglobin That Allows Oxygen to Be

question 133

Multiple Choice

The major ingredient in hemoglobin that allows oxygen to be transported is:

• A) sodium.
• B) zinc.
• C) iron.
• D) copper.

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Definitions:

Domestic Output

The sum of all products and services generated inside a nation's boundaries.

Migration

The movement of people from one place to another with the intentions of settling, permanently or temporarily, in a new location.

Labor

Human effort used in production which can also include physical and mental effort.

Brain Drain

The emigration of highly trained or intelligent people from a particular country, often due to lack of opportunities or political instability.