tumblr. Uber is trying out a tiered fee structure that affects new drivers in San Francisco and San Diego. Andrew Caballero-Reynolds/AFP/Getty Images. Uber is testing a fee structure that charges new drivers in San Francisco and San Diego a 30 percent commission -- 5 percent more than it takes from its current drivers.The ride-hailing service, which matches passengers with drivers via a smartphone app, typically takes a 20 percent to 25 percent flat commission.umblr. Uber is trying out a tiered fee structure that affects new drivers in San Francisco and San Diego. Andrew Caballero-Reynolds/AFP/Getty Images. Uber is testing a fee structure that charges new drivers in San Francisco and San Diego a 30 percent commission -- 5 percent more than it takes from its current drivers.
Â· just now. Report Abuse. Well, vitamin D is usually considered a vitamin rather than a hormone, but it functions as a hormone by causing an increase the absorption of calcium in the gastrointestinal tract, as well as influence the deposition and reabsorption of bone.
Functions of Vitamins [edit]. Vitamin A: is used for growing healthy new cells like skin, bones, and hair. Also is used for surface lining upkeep of the eyes, urinary tract, intestinal tract, and respiratory system. Night vision is also assisted by Vitamin A. Vitamin A also performs other major functions in the body. vitamins help convert food often consumed as carbohydrates into fuel. They also help the nervous system function properly. Good sources of Vitamin B are bananas, potatoes, whole grans, and chili peppers. Vitamin C: helps regulate the immune system and relieve pain caused by tired muscles.