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Birds and mammals are endotherms,meaning they spend enormous amounts of energy maintaining a constant body temperature.To meet these energy needs,birds and mammals independently evolved four-chambered hearts,completing the separation of oxygen-rich from oxygen-depleted blood.How would this maximize the amount of oxygen reaching tissues?
Availability
The degree to which a product or service can be purchased or accessed by consumers at a given time.
Consumer Tastes
Preferences and likings of consumers that influence their purchasing decisions and are shaped by cultural, social, and individual factors.
Close Substitutes
Products or services that can easily replace each other in the eyes of the consumer due to their similarities in function or utility.
Oligopoly
A market structure in which a few firms dominate, leading to limited competition and potentially higher prices and levels of cooperation.
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