The cell would dissolve in water
Answer:

Cost : The expenditure incurred by a producer on the factor as well as non-factor inputs for a given amount of output of a commodity.
The marrow in certain bones in your body create red blood cells, so eventually you get your blood back. The reason we need to give blood is for people, who lost to much blood to quickly to regenerate it in time to supply their body with oxygen.
Because lung transplants can easily fail and most of the time lungs are so vulnerable to infection.