Final answer:
Milk production by cows is the process carried out by the mammary glands in the udder. The amount of milk produced can be measured in gallons, and its distribution is influenced by regional demand and population centers.
Step-by-step explanation:
Milk production by cows is the process by which cows produce milk, which is then used for various dairy products such as cheese, yogurt, and milk itself. The production of milk is mainly carried out by the mammary glands in the cow's udder. The milk exits the breast through lactiferous ducts and is stored in glandular lobes called alveoli.
Milk production can be measured in various units of measurement, but gallons are commonly used to quantify the amount of milk produced by cows on a daily basis. For example, Megan, who owns a dairy farm, should record the amount of milk produced by her 85 cows each day in gallons to keep track of their milk production.
The distribution of milk production by cows is influenced by various factors, such as regional demand, population centers, and the availability of hay for feeding cows. Regions with large populations tend to have higher milk production due to the high demand for milk. Furthermore, milk production tends to be concentrated near population centers to ensure quick transportation to the market.