The change in hair color occurs when melanin ceases to be produced in the hair root and new hairs grow in without pigment. The stem cells at the base of hair follicles produce melanocytes, the cells that produce and store pigment in hair and skin. The death of the melanocyte stem cells causes the onset of graying.
The revenue cycle is a recurring set of business activities and related information processing operations associated with providing goods and services to customers and collecting their cash payments.The primary external exchange of information is with customers.he revenue cycle is a recurring set of business activities and related information processing operations associated with providing goods and services to customers and collecting their cash payments.
Unearned revenue (deferred revenue) refers to funds received by a seller for goods or services not yet delivered to the buyer. This article further defines and explains unearned revenue and deferred revenue, with numerical examples. The unearned revenue situation is familiar in many kinds of businesses. For example: When the purchaser of land or other real estate makes an initial deposit on the property, the seller has unearned revenue on the deposit until the sale transaction is completed and legal ownership is transferred.