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 (plural nucleoli) is a non-membrane bound structure and is the centre of the cell. It is composed of proteins and nucleic acids found within the nucleus of eukaryotic cells. Its function is to transcribe ribosomal RNA(r RNA) and assemble it within the cell.o rRNA is synthesized within the nucleolus. While still within the nucleolus, these rRNA molecules are assembled, together with many protein molecules. into two subunits of future ribosomes. The subunits leave the nucleus through pores in the nuclear membrane, and enter the cytoplasm.