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
The nucleolus (nucleoli, plural) is one of the most important components of the cell nucleus, and is far the most easily recognized substructure in the nucleus of eukaryotic cells. It can easily be determined by phase contrast microscopy and with the use of different dyes.he nucleolus (nucleoli, plural) is one of the most important components of the cell nucleus, and is far the most easily recognized substructure in the nucleus of eukaryotic cells. It can easily be determined by phase contrast microscopy and with the use of different dyes.