Examlex
The same basic internal organs (kidneys, stomach, heart, lungs) are found in frogs, birds, snakes, and rodents. This is primarily an example of ________.
Perfect Substitutes
Goods or services that can be used in exactly the same way and to the same extent, where one can completely replace the other in consumption.
Income Effect
The alteration in income for a person or the economy and the resulting influence on the demand for a certain good or service.
Substitution Effect
The economic principle indicating how consumers react to a change in price by substituting a more expensive item with a cheaper alternative.
Price
The total money demanded to secure a good or service.
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