Answer:
1) Phloem is made of two types of cell parenchyma cells and schlerenchyma cells in adiition to it it also has sieve elements
2)The epidermis is the outermost cell layer of the plant body. Epidermal cells are tightly packed together thus provide mechanical strength and protection to the plant also helps in Transpiration and photosynthesis as it has special opening called stomatal openings