Examlex
Fishes have a two-chambered heart, a single atrium, and a single ventricle.
Marginal Product
The additional output generated by increasing one unit of a specific input, keeping other inputs constant.
Labor
The human effort, both physical and mental, used in the production of goods and services.
Average Product
The quantity of goods produced per unit of input, determined by dividing the overall output by the amount of input used.
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