Question:  What are the four main types of proteins found in blood plasma and what are their functions?

Question:  Explain why is type O blood considered the universal donor? What would happen if a person who was a type B blood type was transfused with type A blood type and why?

Question:  Trace the pathway of a nerve impulse to the olfactory center in the brain.

Question:  What role does infections play in rheumatic heart disease.