1. why did arabic numerals replace roman numerals?

a.
they were more accurate.

b.
they were based on the quran.

c.
they made it easier to perform calculations.

d.
they were easier to read.

2. which of the following were among the most valuable trade goods produced in the arab world?

a.
cotton textiles

b.
silks

c.
furs

d.
spices

3. why did muslim architecture incorporate roman and byzantine elements?

a.
the arab muslims were conquered by the romans.

b.
many romans lived in the arab muslim empire.

c.
the romans and byzantines once ruled some muslim lands.

d.
muslims valued roman and byzantine architectural styles the most.

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.