Read the following statements and find out the incorrect statements.
a. All vertebrates and a few invertebrates have a closed circulatory system.
b. Hyperension leads to heart disease and slso affects vital organs like brain and lungs.
c. CAD affects the vessels that supply blood to the skeletan muscles.
d. In angina, a symptom of chronic chest pain appears when no enough oxygen is reaching the heart muscle.
e. Heary attack means the state of heart when it is not pumpin blood effectively enough to meet the needs of the body.