What Was the Key to American Security During the Nineteenth

question 75

Multiple Choice

What was the key to American security during the nineteenth century?

• A) the largest naval fleet in the world
• B) troops stationed on the borders
• C) geographical isolation
• D) active diplomacy in Europe
• E) the largest nuclear arsenal in the world

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Definitions:

Medullary Sinus

The spaces within the lymph node that carry lymphatic fluid and white blood cells through the node.

Afferent Vessels

Blood vessels that carry blood towards an organ or tissue, including those supplying the glomeruli of the kidneys.

Capsule

A protective layer or structure, such as the fibrous covering of an organ or the gelatinous casing of a medication.

Human Chorionic Gonadotropin

A hormone produced by the placenta during pregnancy, often used in fertility treatments and as an indicator in pregnancy tests.