Vinyl chloride, chloromethane and the banned pesticide DDT are examples of chlorinated hydrocarbons. Chlorinated hydrocarbons are organic molecules wherein chlorine has been substituted for some of...
Resident flora of certain areas plays a definite role in maintaining health and. normal function. Members of the resident flora in the intestinal tract synthesize. vitamin K and aid in the absorption of nutrients. On mucous membranes and. skin, the resident flora may prevent colonization by pathogens and possible. disease through âbacterial interference.â The mechanism of bacterial interference. is not clear.
Bacteria fixes nitrogen in the soil, converting it into compounds useful (and neccessary) to plant survival. Generally bacteria take N2 and convert it into nitrates and ammonia, which are important nutrients for plants. tlb AU Â· 8 years ago.