The following data are provided by Watson, Inc. Data concerning its retail bucket distribution operations are as follows: Annual fixed costs $178,000 Average invested capital $5,400,000 Unit selling price $18 Units sold annually 19,000 Variable cost per unit $7.65 How much is investment turnover if the return on investment (ROI) is 7.3%?

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.'

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