Answer :
in blood bank blood gets divided into its components and it is preserve in a room i.e known as blood banks
The blood is stored in refrigerators at 2 to 6 degrees C. Each unit of wholeblood normally is separated into several components. Red blood cells may be stored under refrigeration for a maximum of 42 days, or they may be frozen for up to 10 years. Red cells carry oxygen and are used to treat anaemia.
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