Consider the following costs of owning and operating a car. An $18,000 Fiat 500 Pop financed over 60 months at 4 percent interest means a monthly payment of $331.50.
Insurance costs $120 a month regardless of how much you drive. The car gets 35 miles
per gallon and uses regular-grade gasoline that costs $2.60 per gallon. Finally, suppose
that wear and tear on the car costs about 20 cents a mile. Which costs are fixed, and
which are variable? What is the marginal cost of a mile driven? In deciding whether to
drive from Atlanta to Las Vegas (about 2,000 miles round-trip), which costs would you
consider? Why

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.'

the answer is     d. in our global economy, most job growth will be in services, but manufacturing jobs will exist, too.

administrative jobs normally have someone answering phone calls and scheduling appointments, filing patient or customer information, making sure the front of the office looks nice to those who enter the building. administrative jobs can also include making sure the manager has everything they need for meetings, making delivers and much more. administrative jobs are important to most businesses as are customer service focused as they are often one of the first impressions a consumer sees of a business.