Match Each of the Following E-R Structures with Its Relational

question 175

Multiple Choice

Match each of the following E-R structures with its relational representation.
-Create a relation with a composite primary key that includes the primary key of the entity on which this entity depends and nonkey attributes.

• A)regular entity
• B)weak entity
• C)binary or unary 1:1 relationship
• D)binary 1:N relationship
• E)binary or unary M:N relationship or associative entity
• F)binary or unary M:N relationship or associative entity with its own key

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Definitions:

Analgesics

Medications or substances used to reduce or eliminate pain.

Mucous Membranes

Moist tissue lining several parts of the body such as the nose, mouth, throat, and lungs, that secrete mucus.

Polyps

Abnormal growths of tissue that protrude from mucous membranes, commonly found in the colon, nose, or uterus.

Cervix

The lower part of the uterus in the female reproductive system, connecting the uterus to the vagina.