In humans what structure do the job of phloem and xylem?

When plants die fungi breaks them down

1) one long paddle or flipper for microscopic organisms.2) the edible nut from a tree and tastes like a sweet almond3)  a tough sheath or membrane that encloses something in the body, such as a kidney, a lens, or a synovial joint.4) a cardboard  box protecting the balloon (cell) from outside contaminants  5) protein builders of a cell and the protein synthesizers of the cell, kind of like construction workers building a building (the building being the protein and the workers being the cell)6) an irregularly  shaped part within a cell7) a bouncer at a club letting certain people (organisms) into the cell  8) most important functions in the cell happen