Jorge martinez is a well-educated entrepreneur who operated a small business in his home country of florentina. at the encouragement of his american relatives, jorge recently immigrated to the united states and applied for u. s. citizenship. "in florentina, tax rates were very high," jorge complained. "the government used the taxes i paid to finance all sorts of social programs to the less fortunate. while this is a noble goal, it has really undermined the profit incentive of individuals such as me. i really feel that these high taxes have stifled economic growth." jorge's comments illustrate the reason many socialist countries are experiencing a(n):

brain drain

Explanation:

According to my research on economy and politics in certain countries, I can say that based on the information provided within the question these comments illustrate the reason many socialist countries are experiencing a brain drain. When speaking in terms of population and immigration, this term refers to the emigration of highly trained or qualified people from a particular country to another.

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answer; i do believe that the correct answer is ; ///are valued more highly than their cost;

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.'