Every child has a biological father, but if the parents are not married, the child has no legal father, and the biological father has no rights or responsibilities to the child. In order for the biological father to be the legal father, the parents must establish paternity for the child.
Dr. Rick DuFour defines a professional learning community (PLC) as âa group of people working interdependently toward the same goal.â1 Interdependence is an essential element because it:
Primary StandardsA primary standard is a reagent that is extremely pure, stable, has no waters of hydration, and has a high molecular weight.   Secondary StandardsA seco â¦ ndary standard is a standard that is prepared in the laboratory for a specific analysis. It is usually standardized against a primary standard. 10 â¦ 5.99 g/mol A secondary standard is a standard that is prepared in the laboratory for a specific analysis. It is usually standardized against a primary standard.example: NaOH.. 19 people found this useful.