Google. The Oldest Trees on the Planet. Trees are some of the longest-lived organisms on the planet.
At least 50 trees have been around for more than a millenium, but there may be countless other ancient trees that haven’t been discovered yet. Trees can live such a long time for several reasons. One secret to their longevity is their compartmentalized vascular system, which allows parts of the tree to die while other portions thrive. Many create defensive compounds to fight off deadly bacteria or parasites. Zone d'absorption de la racine - Gnral - Modles de botanique - 3B Scientific. Tige de plante monoctyldone - Gnral - Modles de botanique - 3B Scientific. Structure tissulaire d'une branche d'arbre - Gnral - Modles de botanique - 3B Scientific.