Who was the first scientist to dispute ptolemy's model of a geocentric or earth-centered, universe

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

Which nims command and coordination structures are offsite locations where staff from multiple agencies come together?

He constitution dictates that the presiding officer of the senate is the a) majority whip. b) vice-president. c) majority leader. d) speaker of the house.