A ________ Key Is Used When Two Fields Are Needed

question 34

Multiple Choice

A ________ key is used when two fields are needed to uniquely identify a record.

• A) composite
• B) natural
• C) foreign
• D) primary

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Definitions:

Light Microscope

An optical instrument using visible light and lenses to magnify small objects, allowing for the observation of cellular structures.

Fluorescent

Exhibiting fluorescence; the ability to absorb light at one wavelength and emit it at a longer wavelength, producing a distinct glow.

Central Vacuoles

Large vesicles found in plant cells that store nutrients and waste products and contribute to cell growth by absorbing water and increasing in size.

Amino Acids

Organic compounds that are the building blocks of proteins, necessary for health and vital processes in living organisms.