Shops that use barcode readers may generate receipts with a barcode of the receipt identification number, that enables a salesperson to scan the barcode and quickly retrieve the details of the original transaction, for example if a customer seeks to return or exchange goods or there is some other query.
Both ovaries do not release mature eggs at the same time. Only one egg is, suppose, to be released each month by one of the ovaries, not both. If both ovaries release two matuâ¦re eggs and they are then fertilized, fraternal twins will be conceived.
Deep inside the woman, in her ovaries, one egg develops each month. From the man's testes, through his penis, millions of sperm enter the woman's vagina. Here, they begin their travel toward the egg. Only one sperm can enter an egg. When one does, fertilization occurs. Genetic material from the male and from the female combine, to create the first cell of an offspring. The fertilized egg migrates to the uterus where it develops into a fully formed fetus over a period of about 40 weeks. Then, a baby is born.