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).
Â© 1997 TERC. All rights reserved. A lichen is an associated organism: two very different beings, an alga and a fungus, live together in a qualified symbiotic association, producing a new body, or lichen thallus. 1997 TERC. All rights reserved. A lichen is an associated organism: two very different beings, an alga and a fungus, live together in a qualified symbiotic association, producing a new body, or lichen thallus.