Animal Cells. Most animal cells are between 10 to 100 microns in size. The size depends partially on the type of cell and its function. Red blood cells, which don't need to divide and replicate are only about 8 microns in diameter, while many muscle and nerve cells are thin, spindly and extremely long.nimal Cells. Most animal cells are between 10 to 100 microns in size. The size depends partially on the type of cell and its function. Red blood cells, which don't need to divide and replicate are only about 8 microns in diameter, while many muscle and nerve cells are thin, spindly and extremely long.
A cellular phone that uses the Global System for Mobile (GSM) network and can access multiple cellular phone service provider networks is called an unlocked GSM phone. A locked cell phone is sold by the cell phone service provider and cannot be used with any other provider.
For example, if AT&T paid for the phone, AT&T would lock it so it could only be used on AT&T and not T-Mobile. This lock is called by several names including: Sub Lock or SPC Lock or Sim Lock. Now that you know why the cell phones are locked, I will discuss how to tell if your cell phone is locked or unlocked. First, you must determine if your phone is a GSM phone or a CDMA phone. This is easy to tell, if the phone uses a sim card (a small piece of plastic that you put in the phone, see picture below), it is GSM, if it doesn't, it is CDMA.