A Foreign Key Is an Attribute (Or Combination of Attributes)whose

question 83

True/False

A foreign key is an attribute (or combination of attributes)whose value is unique across all occurrences of a relation.

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Definitions:

Light Reflectance

Light reflectance is the process or measure of the proportion of light that is reflected from a surface when illuminated.

Nuptial Gifts

Items or nutrients given by one organism to another as part of a mating or courtship ritual.

Waggle Dance

A unique form of communication used by honeybees to convey information about the direction and distance of food sources to hive mates.

Plausible Hypothesis

A hypothesis that is reasonable and supported by available evidence, suggesting it could be true.