Bert owns a company that provides institutional cleaning services. he likes things done to his exact standards and does not tolerate any other methods. according to mcclelland's "three needs" theory, bert's dominant need is ) achievementb) safetyc) powerd) affiliatione) esteem

C. Power

Explanation:

Bert's dominant need is power since the need for power is the desire within a person to hold control and authority over another person and influence and change their decision in accordance with his own needs or desires. The need to enhance their self esteem and reputation drives these people and they desire their views and ideas to be accepted and implemented over the views and ideas over others. These people are strong leaders and can be best suited to leading positions. They either belong to Personal or Institutional power motivator groups. If they are a personal power motivator they would have the need to control others and a institutional power motivator seeks to lead and coordinate a team towards an end.

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.'