Shockingly, the longest bridge in the world is 102.4 miles! Curious individuals can find this architectural wonder in China, the Danyang-Kunshan Grand Bridge. This $8.5 million bridge carries trains between Nanjing and Shanghai.
The ground tissue comprises the bulk of the primary plant body. Parenchyma, collenchyma, and sclerenchyma cells are common in the ground tissue. Vascular tissue transports food, water, hormones and minerals within the plant. Vascular tissue includes xylem, phloem, parenchyma, and cambium cells. Two views of the structure of the root and root meristem.
The origin of vascular tissue (specialized tissue for carrying food, water, & minerals) was an evolutionary breakthrough in the colonization of land. Plants with vascular tissue are known as Tracheophytes. Two types of vascular tissue developed --- xylem & phloem. Xylem carries water & inorganic nutrients from the roots to the stem & leaves. Phloem carries carbohydrates made by the plants to wherever they're needed or stored in the plant.