Development of tissue typing changed organ transplantation as
Tissue typing minimizes the chance of rejection
Explanation:
Before tissue typing the chances of rejection of organs y the body of the person needing a transplant was very high and it was a dangerous procedure with little chance of success.
Tissue typing is a process by which the sample tissue of the donor is matched with the sample tissue of the patient in need of help. This makes it viable for the person to know if the organs will be rejected or not before the actual surgery takes place and has allowed for greater successes in transplant thus.
Nicotine causes the brain to release chemicals that make you feel pleasure but overtime you may need more and more nicotine to get the same effects can eventually lead to nicotine addiction which can lead to affects that cause decreased appetite heighten mood increase heart rate and blood pressure nausea diarrhea and increased alertness.
<h3>The blood in the pulmonary artery is going to the heart to collect oxygen, and therefore has a low content of oxygen. So, the blood in the pulmonary artery is a violet colour because it has low oxygen. The blood in the pulmonary vein is oxygen rich, and so it gives a scarlet</h3>

The correct option is D.
Racial bias refers to the attitudes that affect an individual's understanding, action and decisions in an unconscious manner. Racial bias holds that some races are superior while others are inferior, this attitude affects how other people from other races are perceived and treated.