America's Source for High School Sports and the leading volleyball organization team up to honor the nation's best. (Week of 9/2-10/4).
Phloem Structure Phloem is composed of several cell types including sclerenchyma, parenchyma, sieve elements and companion cells. The sieve element and companion cell are found closely associated with each other in what is referred to as the sieve element/companion cell complex.
Weegy: Simply put, every living organism needs to take in substances from its environment, and dispose of waste substances back into its environment. [ The transport system in a plant which does this moves substances around the plant in special tissue called vascular tissue.n between the xylem and the phloem vessels there is a layer of cambium. This is a layer of meristem cells which can divide to produce more phloem or xylem. The diagram to the right (top) shows a vascular bundle in close detail.