What are 2 examples of diseases that affect the immune system?

select a disease of the immune system that interests you. what are some common treatments for that disease?

What does the sociological imagination refer to?

What percent of body heat can be lost through the head

Asubstitute is standing at the halfway line waiting to enter the match at the next stoppage of play the ball has gone over the touchline for throwing and referee allows for the substitution to substitute wants to take the throw-in does the substitute first have to enter the field of play before being allowed to take the throw-in