A device that produces light for a fiber optic lighting system, which also is made up of fiber optic fibers and sometimes fixtures used at the ends of the fibers to direct the light in a specified manner. The light source used in an illuminator is usually an MR halogen lamp, an MR metal halide lamp, or an LED lamp.
There are two types of vascular tissue: xylem, which moves water, and phloem, which moves food. These structures are arranged differently in monocots and dicots. In monocots, which are flowering plants with only one seed leaf, the xylem and phloem are found in paired bundles throughout the stem.
There are three different muscle tissues, skeletal, smooth and cardiac. However, there is only one type of nervous tissue. Plant tissues are a bit different. Instead of tissue types, plants have tissue systems that are classified by the job they do.The three tissue systems are the epidermis (or 'skin' of the plant), the vascular, which transports water and nutrients in the plant, and the ground tissue, which makes nutrients for the plant.here are three different muscle tissues, skeletal, smooth and cardiac. However, there is only one type of nervous tissue. Plant tissues are a bit different. Instead of tissue types, plants have tissue systems that are classified by the job they do.