All Primary Key Entries Are Unique,and No Part of a Primary

question 93

Multiple Choice

All primary key entries are unique,and no part of a primary key may be ____.

• A) zero
• B) a foreign key
• C) null
• D) a candidate key

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Definitions:

Adrenocorticotropic Hormone

A hormone produced by the pituitary gland that stimulates the adrenal glands to release cortisol, a stress response hormone.

Cortisol

A steroid hormone produced by the adrenal glands, often referred to as the "stress hormone" due to its role in the body's stress response.

Fight-Or-Flight Responses

A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival.

Patellar Reflexes

A knee-jerk response triggered by tapping the patellar tendon, used to assess the nervous system.