The necessary and proper clause gives flexibility to which branch of government?

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality.potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english

Music the height of a wave or the amount of the wave carries is the amplitude. a.air b.nodes c.speed d.energy

Identify why the western ports were important to the united states.