When Using the Relational Model to Represent Two Tables, One

question 81

Multiple Choice

When using the relational model to represent two tables, one must ________.

• A) add a foreign key to one of the tables
• B) have more than two primary keys in the model
• C) establish only N:M relationships between the tables
• D) use metadata instead of foreign keys
• E) minimize the number of columns in the second table

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Definitions:

Filtration Membrane

A semipermeable barrier that separates particles in a fluid, commonly found in the kidneys for waste removal from the blood.

Bowman Capsule

The Bowman capsule is a cup-like sack at the beginning of the tubular component of a nephron in the kidney, enclosing the glomerulus and involved in filtration.

Countercurrent Mechanism

A process by which fluids flow in opposite directions in adjacent tubes, exchanging properties (such as heat or concentration) to facilitate efficient transfer.

Uric Acid

A waste product formed from the breakdown of purines, excreted in urine.