2. The abbreviation u, as in 10u insulin, ОООО
A. must be used throughout North American medical facilities.
B. is clear and can't be misunderstood.
C. is generally prohibited to avoid misinterpretation of 10u as 100.
O D. is universally accepted and used.

Hello! i believe that it is okay, but you should limit on how much you go in a jacuzzi, hot tub, sauna etc. the rise in temperature may effect the development of you unborn baby and could cause some birth defects most likely in the first 3 months or 12 weeks of pregnancy. the recommended amount of time to be in a jacuzzi while pregnant would be 10  minutes or less.i hope this !

The alveoli are what give the lungs so much space, and if they are big, there is more gas exchange than if they are small.

Wouldnt the answer be b?