What Is Hemoglobin

question 63

Multiple Choice

What is hemoglobin?  

• A) A reliable source of oxygen
• B) A protein that is colorless when deoxygenated
• C) An iron-containing respiratory protein
• D) A protein found in invertebrates such as crabs and octopus
• E) A by-product of gas exchange

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Definitions:

Balance of Trade

The difference between the monetary value of a nation's exports and imports over a certain period. A positive balance means more goods were exported than imported, and vice versa.

World Trade Organization

An international body that deals with the rules of trade between nations, aiming to ensure trade flows as smoothly and predictably as possible.

Multilateral Forum

A platform where three or more countries engage in dialogue and collaboration on issues of common interest.

Quotas

Limits set by governments on the amount of a specific good that can be imported or exported within a certain timeframe.