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.
Both xylem and phloem are vascular tissues found in a plant. Xylem is a tubular structure which is responsible for water transport from the roots towards all of the parts of the plant.hloem is a living tissue, composed of sieve tube cells, and its primary function is to transport nutrients (in sap) throughout the plant. As opposed to xylem which only transports water up the plant, phloem transports nutrients up or down, depending on where the nutrients are greatest.