All of the following accurately describe earned value management except: a. it is used to make predictions concerning the project schedule and cost control until the project’s conclusion. b. it is good for performance reporting but not for forecasting c. it enables a project team to understand progress in terms of both cost and schedule. d. it is used as a decision-making tool.

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.'

um sure