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.
Xylem, and phloem are the two types of tissue that make up the vascular tissue system. Xylem: Xylem acts as a conduit is responsible for moving water and minerals from theroots up the stem to the shoot system where these substances are used forphotosynthesis.ylem, and phloem are the two types of tissue that make up the vascular tissue system. Xylem: Xylem acts as a conduit is responsible for moving water and minerals from theroots up the stem to the shoot system where these substances are used forphotosynthesis.