UHC is a three letter acronym that may designate one of the following: 1  Universal health care or Universal health coverage. 2  Unburned hydrocarbon. 3  Unicorn Hobby Company.  University Hospitals of 1  Cleveland. United Healthcare, a large health insurer in the  U.S.
When you have finished this page, try the Roots Quiz. The root is the part of a plant that is usually found underground but can also be above ground. Roots' jobs are: To absorb or take in water and minerals from the ground. To hold the plant in place. To store food for the plant. To prevent soil erosion.
Unseen and buried beneath the soil, plant roots perform functions that are necessary to a plant's life. The roots collect water and nutrients for the plant and secure it to the soil. Two basic types of root systems exist. One type is the taproot, which grows vertically and has lateral branches. The other type has fibrous, branching roots that make a network close to the soil surface. Some plants have either a taproot or fibrous roots, and other plants combine the two systems. Water and Nutrient Harvesting Plant roots absorb water through root hairs, which are tiny roots that extend from the root's epidermis, or the outer layer of the root.