Examlex

Solved

Describe the Use of Nulls in a Database

question 19

Essay

Describe the use of nulls in a database.


Definitions:

Osmotic Equilibrium

A state where the concentration of solutes is equal across a semipermeable membrane, allowing equal movement of water in both directions.

Hydrophobic

Lacking an attraction to water, possessed by nonpolar molecules; the opposite of hydrophilic.

Lipid

A group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins, and others, which are crucial for cell structure and metabolism.

Nonpolar Covalent

A type of chemical bond where two atoms share a pair of electrons with each other equally.

Related Questions