Every Primary Key Can Also Be a _____ Key

question 31

Multiple Choice

Every primary key can also be a _____ key.

• A) Foreign
• B) Secondary
• C) Identifying
• D) Relational

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Definitions:

Lymph

A clear fluid that circulates through the lymphatic system, carrying white blood cells and supporting the body's immune system.

Lipid Absorption

The process by which dietary fats are broken down and taken up into the bloodstream from the digestive tract.

Lymphatic System

A network of tissues and organs that help rid the body of toxins, waste, and other unwanted materials, primarily transporting lymph, a fluid containing infection-fighting white blood cells.

Erythrocytes

Red blood cells that carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product away from tissues back to the lungs.