... phylum are dependant on water or moist surroundings to survive(Raven 1999). The reason that they rely so heavily on moisture in their environments is because they are lacking a vascular system. Bryophytes are some of the oldest and most primitive plants still extant on earth, and since they are unable to utilize xylem and phloem like vascular plants to transport water ... being suggested that would use certain species of mosses to monitor regional levels of atmospheric metals( Schilling and Lehman, 2002). Although the majority of bryophytes are not economically important for human consu...

• Word Count: 1014
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate