Answer:
People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group. ... Their plasma does not contain A or B antibodies and can be transfused safely to all blood types.
The Bedouin fall into two basic social classes. One class is known as the "true" Bedouin, and they live as nomadic shepherds. The other group has embraced farming and is known as the fellahin. The fellahin lead a more settled life on the edge of the desert.
Answer:
B. It increased tensions between American colonists and England.
Explanation:
Boston massacre was a riot that was deadly and it happened in King Street in Boston on 5th March 1770.It started as a street brawl between a British Soldier and American colonists and it quickly escalated to chaos and bloody slaughter.This escalated the anti-British sentiments and in a way a reason to cause the American Revolution.