During 2019, a company purchased a mine at a cost of $4,324,000. The company spent an additional $760,000 getting the mine ready for its intended use. It is estimated that 460,000 tons of mineral can be removed from the mine and the residual value of the mine will be $760,000. During 2019, 61,000 tons of mineral were removed from the mine and 51,000 tons were sold. Which of the following statements is incorrect with respect to the accounting for the mine?
a. The book value of the mine on December 31, 2014 was $3,750,600.
b. The inventory of minerals was $94,000 at December 31, 2014.
c. The 2014 cost of goods sold was $479,400.
d. The book value of the mine decreased $573,400 during 2014.

answer; /// i believe the correct answer is (all of the above);

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; functional fixedness;