Which of the Following Specifies That Each Instance of an Entity

question 42

Multiple Choice

Which of the following specifies that each instance of an entity type must have a unique identifier that is not null?

• A)referential integrity constraints
• B)triggering operations
• C)entity integrity
• D)domains

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Definitions:

Cell Division

The process by which a cell divides into two or more cells, a fundamental process for growth, repair, and reproduction in organisms.

Fusion

The process of merging or combining two or more entities into one, which can occur in biological, chemical, or physical contexts.

Human Embryonic

Relating to the early stages of human development within the womb, from conception to the eighth week of pregnancy.

Stem Cells

Undifferentiated cells capable of giving rise to indefinitely more cells of the same type and from which certain other kinds of cell arise by differentiation.