A ________ Key Is an Attribute (Or Combination of Attributes)that

question 89

Multiple Choice

A ________ key is an attribute (or combination of attributes) that uniquely identifies each instance of an entity type.

• A)Primary
• B)Unique
• C)Candidate
• D)Duplicate

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Definitions:

Earthworms

Terrestrial invertebrates that belong to the phylum Annelida, known for their role in aerating and enriching soil.

Setae

Stiff, hair-like structures on the outer surface of animals, notably invertebrates, used for sensation, locomotion, or attachment to surfaces.

Aortic Arches

The series of curved blood vessels that diverge from the top of the heart; vital in the arterial blood circulation system.

Arthropods

A large phylum of invertebrate animals with exoskeletons, segmented bodies, and jointed appendages, including insects, arachnids, and crustaceans.