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.
Basically, xylem tranports water and phloem transports organic substances. Xylem is a tissue found in vascular plants that transorts water and dissolved mineral nutrients. It consists of hollow vessels that are formed from cells joined end to end in flowering plants.ylem tissues transport water from the roots throughout the plant, while phloem transports food (suga â¦ rs) from photosysnthesis throughout the plant. Xylem: tubes that brings water and minerals from the roots into the leaf.