An alternation of generations for plants include a haploid gametophyte and a diploid sporophyte.
Cells need mitosis in order to keep the supply of cells suitable for the human body to continue circulating with
RNA has great capability as a genetic molecule; it once had to carry on hereditary processes on its own. It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene.
Its organism because it is one single thing.
