joe lives in a neighborhood where the grocery stores there rarely sell fresh or low-cost produce. Neighborhoods like Joe's are known as

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.'

answer; situational irony;

answersituation analysis;

answer makes less frequent trips to the bank and firms make less frequent price changes;