A closeout report is primarily used to

draft the summary of a project plan and the performance efficiency of it.

Explanation:

A closeout report is primarily used to "draft the summary of a project plan and the performance efficiency of it."

Closeout report is a means of preparing an analysis of a project plan, including the result, in which the differences, pros, and cons, are listed out.

It also contains the performance rating or measure to determine the level of success of a project plan.

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.'