Typically, the United States is referred to as having a mixed economy. Which characteristics BEST illustrate the United States acting as a command economy?
A)
The federal government prioritizes significant budget concerns at a
substantial cost, like national security
B)
State governments facilitate open and accessible face-to-face and digital
marketplaces for financial transactions.
c)
Private investment in education and business are foundational principles
and profit making is a common, and often revered, goal.
D)
The federal government uses central planning in areas of significance to
the nation's stability and health, including Social Security and Medicare.
E)
Residents of the United States are able participate in intellectual and
economic movement between borders, as evidenced by the ability to
attend out-of-state colleges and engage in interstate commerce.

15 1/2 years old in california

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'

consumer credit. an advantage is that it allows consumers to afford expensive goods and services now, increasing their standard of living. however, a disadvantage is that it creates a trap for debt, if people do not have self control, they may see themselves filing personal bankruptcy.