Cotinine is a byproduct of nicotine, which is found in tobacco. How  long cotinine can stay in your urine depends upon the amount of  tobacco you have smoked and how many yeâ¦ars you have been smoking  for. Therefore, cotinine could stay in your urine for as little as  2 days or as much as 3 months. Answered.
In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), in particular, sucrose, a sugar, to all parts of the plant where needed.In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Greek word ÏÎ»Î¿Î¹ÏÏ (phloios) meaning bark.n vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), in particular, sucrose, a sugar, to all parts of the plant where needed.
I will tell you both the similarity and difference between them. Both xylem and phloem are vascular tissues found in a plant. Xylem is a tubular structure which is responsible â¦ for water transport from the roots towards all of the parts of the plant. Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres. 2  Also ray parenchyma Also the xylem of softwoods (Gymnospermae) do NOT contain vessels. 3  It is a living complex permanent tissue. 4  Inner phloem is alive.