The red scare following world war i was caused primarily by a) the influenza outbreak. b) fear of airborne diseases. c) the actions of wisconsin senator joseph mccarthy. d) fear of communist infiltration of the united states.

Two grizzly bears are fighting over a fish to feed themselves. what kind of interaction is this scenario, which works as a limiting factor in the bears' survival? a. apparent competitionb. interference competitionc. exploitation competitiond. mutualism

The health care system in is referred to as a singleminus−payer health care system, and is a system in which the government provides national health insurance to all residents.

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.