The Purpose of the ____ Constraint Is to Ensure That

question 20

Multiple Choice

The purpose of the ____ constraint is to ensure that two records do not have the same value stored in the same column.However,it can contain NULL values.​

• A) ​PRIMARY KEY
• B) ​UNIQUE
• C) ​CHECK
• D) ​FOREIGN KEY

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Definitions:

Podocytes

Specialized cells in the kidneys that wrap around capillaries of the glomerulus, playing a key role in the filtration of blood to form urine.

Vasa Recta

A series of straight capillaries in the kidney that serve as an extension of the loop of Henle, playing a critical role in the concentration of urine.

Nephron Loop

A U-shaped tube in the nephron of the kidney that plays a crucial role in concentrating urine and conserving water.

Proximal Tubule

A major part of the nephron in the kidney, involved in the reabsorption of water, ions, and nutrients from the filtrate and their return to the bloodstream.