20 points and brainliest plz im failing!
which career pathways deal with relationships between the united states and other countries?

a. revenue and governance
b. foreign policy and planning
c. regulation and national security
d. national security and foreign service

National Security and Foreign Service

I hope this helps :))

answer; i believe that the correct answer is (d)when the products are consumed or

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.'