How do you change your computer screen from landscape to portrait setting? My son was playing with the computer and when I looked at the screen he somehow changed it to a landscape appearance rather than standard portrait.
Lichens have been described as dual organisms because they are symbiotic associations between two (or sometimes more) entirely different types of microorganism 1  -. a fungus (termed the mycobiont). 2  a green alga or a cyanobacterium (termed the photobiont).
A lichen is a composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a symbiotic relationship. The combined life form has properties that are very different from the properties of its component organisms.Lichens come in many colors, sizes, and forms.yanobacteria photobionts are called cyanobionts. The part of a lichen that is not involved in reproduction, the body or vegetative tissue of a lichen, is called the thallus. The thallus form is very different from any form where the fungus or alga are growing separately.