Symbiogenesis, or endosymbiotic theory, is an evolutionary theory that explains the origin of eukaryotic cells from prokaryotes.It states that several key organelles of eukaryotes originated as a symbiosis between separate single-celled organisms.he theory of symbiogenesis (Greek: ÏÏÎ½ syn together, Î²Î¯ÏÏÎ¹Ï biosis living, and Î³Î­Î½ÎµÏÎ¹Ï genesis origin or birth) theory were first articulated by the Russian botanist Konstantin Mereschowsky in 1910, although he described the fundamental elements of the theory were described in a paper five years earlier.
Definition of rider: Additional clause, document, or slip of paper that adds, alters, amends, or removes the provisions of an associated or attached agreement or contract (such as an insurance policy) or a negotiable ...
Horse meaning. the Energy of Victory abounds. Victorious spirit and the symbolism of the Horse..... Horse is regal and fierce in competition, running her heart out to beat out her competitors to be the one to take first place, to have the crown of glory.The Horse is a totem of having the heart of a legendary competitor.he symbolic meaning of a Wild Horse ~ called a Mustang; is ultimate freedom, traversing the lands wild and free with the wind in his hair, completely in the moment of now, yesterday gone forever and tomorrow an eternity away.