37. How many languages are spoken in Nigeria? Name five.

Which of the following statements most accurately describes the requirement for the documentation of minors’ assent to participate in research? parents must approve written documentation.documentation is required unless waived by an irb.to protect minors documentation is always required.federal regulations do not require the documentation of minors’ assent.

Population parameters are difficult to calculate due to

Choose one piece of art shown in the unit and identify three elements or principles of art used in the piece. describe how each of the elements/principles is used in the artwork.