The answer would be the plot I believe, but you put it in the wrong subject.
The main function is a. excrete wastes from the body in urine.
heredity is something you get from your parents and they got from theirs etc their like genes Some aspects of personal health are determined by heredity. Certain diseases are a direct result of heredity, while others are determined in part by heredity and by the lifestyle choices and environment of an individual. Heredity is not the only factor that influences personal health, but it does have a significant impact on it.
I believe it is either one or five, i am not sure though.
