What is the role of natural selection in evolution?

Today, the a. caesar b. bishop c. pope d. tsar still heads the roman catholic church, which is centered on rome. there is no longer a byzantine emperor, but each country has its own a. governor b. patriarch c. prefect d. council to lead the eastern orthodox church there.

According to the law of supply,suppliers want to sell their product at prices

Mankiw attributes – chapter 1 and his 10 principles – differences in living standards within a countryover time and across countries at a moment in time to: a. the presence or absence of inflation and unemployment.b. the allocation of resources between private markets and the public sector.c. those that have dealt successfully with the efficiency v. equality tradeoff and those that haven’t.d. differences in productivity.e. ones that think at the margin and respond to incentives and those that don’t.