Check the Weather in Israel in January before you book your next holiday. This gives the best indication of the weather in January and includes figures for temperature, sunshine and rainfall. The Israel january weather guide shown below is for Jerusalem. 1  13Â°C max day temperature.
Xylem cells are elongated cells with lignified secondary thickening of the cell walls. Xylem cells are specialised for conduction of water, and first appeared in plants during their transition to land in the Silurian period more than 425 million years ago (see Cooksonia). The possession of xylem defines the vascular plants or Tracheophytes.
Xylem (pronounced zye'-lum) is a pipeline that carries water and nutrients from the roots of a plant to the leaves. The term comes from the Greek, xylos or wood. Itâs part of a plantâs vascular system that also includes phloem. Unlike most plant cells, the cells that form the xylem have no end walls.ylem sap moves from roots to the leaves. It actually flows through the xylem system. In addition to carrying water and nutrients from the roots into the leaves and stems of a plant, it also repolaces water lost through transpiration and photosynthesis. The flow system is caused by three things: