Examlex
Which of the following atoms or ions has a single unpaired electron?
Organ System
An organized group of tissues and organs that work together to perform a specialized set of functions (e.g., the digestive system or circulatory system).
Mobile
Capable of moving or being moved freely or easily.
Freshwater
Water that contains minimal amounts of dissolved salts, found in rivers, lakes, and streams, supporting a diverse range of plants and animals.
Hypotonic
Describes a solution with a lower concentration of solutes compared to another, resulting in water influx into cells.
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