Which of the following is not a reason why communicable diseases, such as pneumonia, kill fewer people today than they did in the past?
a. continuing medical advances
b. slower population growth
c. improved living conditions
d. better preventive treatment user: if someone is predisposed to a disease, they are more likely to contract the disease due to
a. lifestyle choices
b. heredity
c. random chance
d. factors other than heredity or lifestyle