The RNA World hypothesis explains that ribonucleic acid (RNA) is the missing link between simple organic molecules and complex organic molecules. Explain the two roles that RNA played in connecting the two types of molecules.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

answer; heredity;

answer; ///blank(1); green bananas; blank(2); raw potatoes;