Lichens have been described as "dual organisms<span>" because they are symbiotic associations between two (or sometimes more) entirely different types of microorganism - a fungus (termed the mycobiont) a green alga or a cyanobacterium (termed the photobiont).
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<span><span>Nucleus-Controls most cell processes and contain the hereditary information of DNA
</span><span>Chromosomes-Small particles made of RNA; assemble proteins
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Rough cytoplasmic reticulum-Involved in the synthesis of proteins; has ribosomes attached to its surface
Love,
Makwilson
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The stability of atoms depends on whether or not their outer-most shell is filled with electrons. If the outer shell is filled, the atom is stable. Atoms with unfilled outer shells are unstable, and will usually form chemical bonds with other atoms to achieve stability.
<span>When two or more elements bond together in specific proportions, "Compound" is formed.
Hope this helps!</span>