Examlex
A major river changes course and divides a population of rabbits into two subpopulations.The two groups are reproductively isolated from each other and become subjected to different selective pressures in the two locations.A predator exists on one side of the river but not the other.Over time,the two groups evolve enough that during a drought that temporarily allows the groups to once again intermingle,they can no longer reproduce with each other.What has happened in this example?
Price-Taker Firm
A business that has no control over the market price of its products and must accept the prevailing market price.
Economic Profit
The difference between a firm's total revenue and its total costs, including both explicit and opportunity costs.
Opportunity Cost
The highest valued alternative that must be sacrificed as a result of choosing an option.
Economic Losses
The decrease in wealth or resources experienced by an individual, organization, or country, typically measured by cost incurred that are not offset by gains.
Q10: The ability to distinguish between reliable and
Q13: Urban flight today can be triggered by
Q14: A species is considered _ to an
Q16: Due to their complexity,any given response to
Q17: Why is increased genetic diversity tied to
Q25: What is the effect on a population
Q29: In which protected area do you think
Q58: What would the age structure diagram of
Q59: According to the World Health Organization,children absorb
Q64: What are some biological characteristics of a