Which statement best supports the use of digital transmission of data over analog? a) analog signals are an exact copy of the data. b) digital signals can be amplified just as well as analog signals. c) analog signals have been used for a much longer time to transmit data. d) because of the nature of digital signals are immune to noise and imperfections.

Astudy that involves interviews of adults is eligible for expedited review. the researcher wants to add an adolescent population (aged 12 to 17) to the study and has designed a parental permission and assent process. no additional changes are planned. which of the following statements about review of the revised protocol is accurate? the research would only be eligible for expedited review if the adolescents are capable of understanding the same consent forms used for the adult population.the research would only be eligible for expedited review if the adolescents have been declared to be emancipated minors.the new research would need full review by a convened irb because children are a protected population.unless the nature of the questions would raise the level of risk to > minimal for adolescents, the research would still qualify for expedited review.

The bill of rights includes things such as the right to bear arms and freedom of speech. these are examples of which american value?

Which environmental change allowed people to travel by land between asia and north america a.human apaption to arctic environments b.the introduction to horses to north america c.the formation of ice sheets on land d.a rise in ocean temperatures