Leonesio Corporation makes a product that uses a material with the following standards: Standard quantity 8.2 kilos per unit Standard price $ 4.00 per kilo Standard cost $ 32.80 per unit The company budgeted for production of 3,100 units in August, but actual production was 3,200 units. The company used 27,600 kilos of direct material to produce this output. The company purchased 29,000 kilos of the direct material at a total cost of $118,900. The direct materials purchases variance is computed when the materials are purchased. The materials quantity variance for August is:

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.'