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
A: The nucleolus is found in the nucleus of a cell and appears as a dark spherical region when seen through a microscope. The nucleolus is one of the largest physical structures within the nucleus and can occupy up to a quarter of its total volume. Continue Reading.