One of the problems with finding new fossil fuel deposits in developing countries is that a. it is very expensive to transport the deposit elsewhere b. those countries tend to keep the resource for themselves, not sharing with other countries c. international companies move in to harvest the new deposit, and very little money or resource remains in the country d. their governments seldom allow extraction of the deposit without meeting expensive environmental regulations

answer: most likely c

explanation:

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.'