The Federal Reserve manages the nation's currency and money supply by
manipulating interest rates and acting as a lender to banks.
© overseeing bank collections and payments on loans.
O dictating criteria and setting loan terms for banks.
O offering investment advice and adjusting interest rates.

answer; ///i believe that the correct answer is (post conventional)

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.'