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 is one of two types of vascular tissues found in plant (the other being Phloem). The word Xylem is derived from the Greek for wood. The xylem is responsible for the transport (translocation) of water and soluble mineral nutrients from the roots throughout the plant, this facilitates the replacement of water lost during transpiration and photosynthesis.