Behavior is actually more complicated than innate or learned. Most behaviors are a mix of the two, neither completely innate nor entirely learned. For instance, some innate behaviors -- such as flying in insects -- can be perfected over time and through experience.
the nucleolus is a prominent sub nuclear structure that is not bound by a membrane and resides within the nuclear matrixthough known to exist since the eighteenth century the primary function of the nucleolus was not discovered until the 1960she nucleolus is a prominent sub nuclear structure that is not bound by a membrane and resides within the nuclear matrix
nucleolus a small spherical body in the nucleus of a cell, consisting of protein and RNA. nucleus in biology, the part of a cell that controls growth and reproduction. organ in a plant or animal, a specialized structure that performs a particular function, such as the heart.