In reality, the distribution of population in India. is highly uneven. The uneven density of population in India is clear from the fact that in Arunachal. Pradesh the average number of population is only 13 persons per square kilometre, whereas it is 9,294. persons per square kilometre in Delhi as per 2001 census.
Fertile eggs have remnants of the male's sperm and a small layer of cells that could form the embryo. The proportion of these to the total egg is so small that it is impossible to detect chemical differences between fertile and infertile eggs.1.
The egg travels very rapidly from the ovulation site to the fertilization site in the oviduct. The fertile life of the egg is shorter than that of the sperm. Ovulated eggs remain fertilizable longer (10â20 hours) than they remain capable of being fertilized and developing into normal embryos (8â10 hours). The likelihood of embryonic death increases as the time beyond this interval increases.