Media scholar robert mcchesney has observed that the media oligopoly of the leading nine media giants is not the only threat to the diversity of opinion and information. an additional threat is the fifty so-called that operate on a national or international level and generate more than $1 billion of business each year.

These are the 50 so called second-tier companies that operate on a national or international level and generate more than $1 billion of business each year.

well.. its gow babies are made

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.'