The three sea urchin species shown below are separated by gametic isolation.Do these species fit the definition of species as defined by the biological species concept? Why or why not?
Definitions:
First-degree Price Discrimination
A pricing strategy where a seller charges the maximum possible price for each unit consumed, tailored to the buyer's willingness to pay.
Incremental Revenue
The additional income received from selling one more unit of a product or service.
Marginal Revenue
The additional income received from selling one more unit of a good or service; it is a critical concept in deciding the optimal quantity of goods to produce.
Price Discrimination
The practice of charging different prices to different consumers for the same product or service, based on their willingness to pay.
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