Which activity involved in the distribution function of a business concerns the supply of products from the manufacturer to the retailer? () is a crucial part of distribution since it is concerned with ensuring that the product(s) reaches the retailer or distributor.

a.   is the correct choice.

good luck. : )

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.'

i would say their habit of breaking down.