Answer:
A. They destroy antigens because they are a foreign object.
Answer:
D) All of the answers are correct
Explanation:
Two people can label the same situation differently which leads to different perceptions. A bad experience could be labelled as a trauma and can lead to several psychiatric disorders like PTSD or depression. Often when we label something we also generalize a situation or a person. Labeling someone in this way can lead other people to oppress that person or take their advantage. For example a label like HIV positive is generally taken in a negative sense by people and it overshadows all other aspects of a person's life.
Physiological conditions ,sensation is something burning or itchy
it pumps blood? but depending on which part of the heart it is located it could be oxygenated or deoxygenated blood
