thin hairlike outgrowth of an epidermal cell just behind the tip; absorbs nutrients from the soil
a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss
(botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground
the place where something begins, where it springs into being
the set of values that give a true statement when substituted into an equation
a number that, when multiplied by itself some number of times, equals a given number
