Blood is getting more rare as people that need blood is now increasing and not as many people are willing to donate them. Artificial blood would mean that there is less likely to be a shortage of blood
2. There are many types of blood, and artificial blood may be needed if there is not enough of that type of blood. We cant put any type of blood into the patient as it may not respond and fight with the blood already in their body
if you have anymore answers...please tell me.