African Americans Who Fought for the Union Army in the Civil

question 25

Multiple Choice

African Americans who fought for the Union Army in the Civil War

• A) carried out reprisals against captured slaveowners.
• B) served mainly in military support units.
• C) served bravely and suffered extremely heavy casualties.
• D) accounted for less than 1 percent of total Union enlistments.
• E) refused to serve under white officers.

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Definitions:

Anatomic Dead Space

The portion of the respiratory system where gas exchange does not occur, including the nose, trachea, and bronchi, where air is moved in and out without being involved in oxygen/carbon dioxide exchange.

Respiratory Membrane

The thin barrier through which gas exchange occurs between the air in the lungs and the blood in capillaries.

Gas Exchange

The process by which oxygen is taken in and carbon dioxide is expelled, primarily occurring in the lungs between air in the alveoli and blood in the capillaries.

Surface Area

The total area of the outer surface of an object or the boundary covering of a three-dimensional figure.