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.
Menstrual Cycle. Background: When a human female is born, her ovaries already contain all the immature eggs that. will later mature and produce functional eggs during her lifetime. Eggs usually begin to mature. between the ages of 12 and 14, when a release of hormones triggers puberty and a young woman. reaches sexual maturity. Most commonly, eggs mature every 28 days or so. They usually mature. one at a time, in alternating ovaries. This rhythmic maturation of eggs and the other chemical and.