Primary Keys Are

question 59

Multiple Choice

Primary keys are:

• A)The same as default keys (or default values)
• B)Unique values for each record in a file or table
• C)Elementary values (like 'primary' school)
• D)Prime numbers in a Fibonacci sequence
• E)The same as foreign keys

Know the structures and functions involved in the visual system.

Understand the physiological and psychological aspects of hearing.

Comprehend the mechanisms and theories related to color vision.

Acknowledge the limitations and capabilities of human sensory systems.

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Definitions:

Chlorine

A chemical element with symbol Cl and atomic number 17, known for its high reactivity and use as a disinfectant.

Ionic Compound

A chemical compound comprising ions held together by electrostatic forces termed ionic bonding.

Lewis Dot Structure

An illustration depicting the connections between a molecule's atoms and displaying the presence of electrons that are not bonded, if any.

Calcium

A metallic chemical element essential for living organisms, particularly in cell physiology and bone formation.