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How do mass extinctions and adaptive radiation relate to each other?
Perfectly Competitive
A market situation where there are many sellers and buyers, the products are homogeneous, and no single entity can influence the market price.
Perfect Competition
An industry structure in which there are many firms, each being small relative to the industry and producing virtually identical products, and in which no firm is large enough to have any control over prices.
Demand Curve
A graphical representation of the relationship between the price of a good or service and the quantity demanded by consumers.
Marginal Revenue Curve
A graph showing the change in total revenue for a business that results from selling one additional unit of a product or service.
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