Question

What is meant by "population density"? What is the operation made in women to prevent the flow of eggs into the oviduct?

Answer 1

Population density refers to the total number of individuals of a particular species present in an unit area at a given time. It is obtained by dividing the total number of individuals of a place by the area of that place.
Tubectomy is the operation done in women to prevent the flow of egg into the oviduct.