vehicle is when a egg and an hatched are fused together & fertilization is when an egg cell becomes fertilized ->  a fertilized egg is formed by a sperm and an egg fusing together  a fertilized hatched is formed by a egg and an hatched fusing together & each sex cell provides half the number of chromosomes in a fertilized egg through sexual reproduction -> a sperm and an egg each provide half of the number of chromosomes in a fertilized egg through sexual reproduction a sperm and an egg each provide half of the number of chromosomes in a fertilized egg through sexual reproduction  a skunk room of a mankind contains developing processes & a sperm is a kind of sex cell -> a sperm of a human contains 23 chromosomes a sperm of a human contains 23 chromosomes  a sex cell of a human contains 23 chromosomes & an egg cell is a kind of sex cell -> an hatched room contains vegetation organic an egg cell contains 23 chromosomes  a sperm and an egg each provide half of the number of chromosomes in a fertilized egg through sexual reproduction & a egg of a mankind contains amphibians lots & an egg cell contains 23 chromosomes -> a fertilized egg will get 23 chromosomes from the sperm and 23 chromosomes from the egg a fertilized egg will get 23 chromosomes from the sperm and 23 chromosomes from the egg  a fertilized hatched will put process drops from the egg and sound ear from the hatched & 23 plus 23 equals 46 -> a fertilized egg will have 46 chromosomes