The statement "copulating is for contibuting to the gene pool." is true because When a man and a woman copulate, often semen comes out of the man's penis into the woman's vagina.  Semen contains sperm.  When a sperm enters a vagina, it seeks the egg, which is located in the woman's womb.  When a sperm meets with an egg, if conditions are right, an embryo may form.  Embryos, under the right conditions, grow into fetuses, which grow, and are given birth to as babies.  These babies are a new member of the gene pool.  Babies will grow into adolescents after about 12 years and will be able to copulate and produce babies of their own.