How will an increase in the percentage of older americans affect the healthcare field? 1.there will be far fewer qualified workers to fill positions in the healthcare field. 2.salaries will drop in the healthcare field so that businesses can control costs. 3.the healthcare field will create new jobs because more people will need care. 4.fewer people will need health care, so there will be a drop in healthcare jobs.

How will an increase in the percentage of older Americans affect the healthcare field? 3. The healthcare field will create new jobs because more people will need care.

Out of the choices given, choice 3 is the best option because as more Americans are getting older, they will need to create jobs to accomodate those needing healthcare. Healthcare is very important and making sure there are enough workers to treat those who need the services is vital. Although some of the other options could happen, they are not the most likely to happen given the circumstances of needing more workers to take care of those needing care.

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.'