Consider a project that costs $126,000; it provides an income of $70,000 a year for 5 years and costs $225,000 to dispose of at the very end of the fifth year. Assume the dicsount rate is 5% for the first 3 years, and 10% for the last 2. What is the NPV of the project?

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; consideration;

answer90,000;