Zone pricing: a. allows a uniform delivered price to be charged to all buyers in each zone. b. simplifies the calculation of transportation charges. c. means making an average freight charge to all buyers within some geographic area. d. may make it possible to compete with sellers located closer to the buyer. e. all of these alternatives are correct.

E. all of these alternatives are correct

Explanation:

Zone pricing allows a uniform delivered price to be charged to all buyers in each zone, simplifies the calculation of transportation charges,  means making an average freight charge to all buyers within some geographic area and may make it possible to compete with sellers located closer to the buyer

the answer should be demonstrations i hope this

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.'