27.1 Describe the components of blood, giving the function of each component listed.

27.2 Explain how bleeding is controlled.

27.3 Explain the differences among blood types A, B, AB, and O; including in the discussion which blood types are compatible.

27.4 Explain the difference between Rh-positive blood and Rhnegative blood.

27.5 Describe the causes, signs and symptoms, and treatments of various diseases and disorders of the blood.