DENDROLOGY

Detailed explanation-1: -Primary dermal tissues, called epidermis, make up the outer layer of all plant organs (e.g., stems, roots, leaves, flowers). They help deter excess water loss and invasion by insects and microorganisms. The vascular tissues are of two kinds: water-transporting xylem and food-transporting phloem.

Detailed explanation-2: -Dermal Tissue System This system consists of Epidermis and Periderm. The epidermis which is generally a single layer of closely packed parenchymatous cells. Its function is to cover and protect the plant. Depending on the part of the plant that it covers, the dermal tissue system is specialized.

Detailed explanation-3: -They differentiate into three main types: dermal, vascular, and ground tissue. Dermal tissue covers and protects the plant. The ground tissue serves as a site for photosynthesis, provides a supporting matrix for the vascular tissue, and helps to store water and sugars.