Examlex
Each level of an energy pyramid corresponds to a step in a food chain and is called a(n)________ level.
Incandescent Bulb
A type of electric light bulb that produces light by heating a filament wire to a high temperature until it glows.
Thomas Edison
An American inventor and businessman known for developing many devices that greatly influenced life around the world, including the phonograph and the electric light bulb.
Knights of Labor
A leading American labor organization in the 19th century that advocated for the rights of workers, including promoting an eight-hour work day and the abolition of child labor.
Terence Powderly
An American labor union leader who served as head of the Knights of Labor in the late 19th century, promoting workers' rights and the eight-hour workday.
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