Martin Marquees makes neon signs to order. Customers can choose from four colors of neon, three-letter fonts, and two sizes of signs. Signs typically take one week to make and generate between $200 and $300 in costs, and Martin charges customers a 50% markup. Which cost system should Martin use

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.'

answer; foreign exchange transaction;