After 24 hours in circulation, the complete their maturation and become indistinguishable from other mature RBCs.

b. take periodic breaks and alternate between tasks.  

will increase work efficiency, and avoid health issues.

hi there, i would say your answer is:

b. there is a fixed quantity of resources and technology available.

hope that : )

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.