By replacing a fridge bought in 1990 with an Energy Star-qualified model, you could save enough energy to light a household for nearly four months, according to the U.S. Department of Energy (DOE). To find a list of Energy Starapproved models, log on to energystar.gov.
This article is about vascular tissue in plants. For transport in animals, see Circulatory system. Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and nutrients internally. There are also two meristems associated with vascular tissue: the vascular cambium and the cork cambium. All the vascular tissues within a particular plant together constitute the vascular tissue system of that plant. The cells in vascular tissue are typically long and slender. Since the xylem and phloem function in the conduction of water, minerals, and nutrients throughout the plant, it is not surprising that their form should be similar to pipes.
â¢ Vascular plants have true stem, leaves and roots. But non vascular plants have stem and leave like structures and rhizoids, instead of true structures. â¢ Xylem tissues of vascular plants contain lignified tissues, and those provide support and rigidity to plant.Due to unavailability of water conducting tissues non vascular plants are tender and comparatively shorter than vascular plants. Xylem tissues of vascular plants contain lignified tissues, and those provide support and rigidity to plant. Due to unavailability of water conducting tissues non vascular plants are tender and comparatively shorter than vascular plants.