Nurse- Managers at the unit level of practice

Hi I am a nursing student an I have a assigment related to the acitivities of the nurse-manager in the unit level of their practice.
Here are the questions, if someone can help me.
What nagemanagement activities do they perform?
what management activities do staff nurses perform?
what management activities do the nurse student perform?
How do the management responsabilities of the staff nurse differ from those of the nurse manager?
what is the relationship between food unit management and effective client care?

The followed question are related to the experince and educational background of nurse managers at all levels of their organizations.
What are their clinical nursing experiences?
what is their education?
Do they have formal or informal education in management or business?
Do the experience levels and educational backgrounds differ among nurse managers at different levels organizational or unit management?
how could a nurse student best prepare for the management responsability?
thank you
Moved to elicit more responses.