Answer:
Socially or economically disadvantaged subjects should be excluded from research protocols that are not designed specifically for them, Option A.
Explanation:
A 'vulnerable population' is a group of individuals who need greater protection than the normal individuals in case they participate in a research, because a research may require include some risks. This type of population includes pregnant women, neonates, children, economically pr socially disadvantaged. Even who are terminally ill are included in such type of population.
They should not be included in research that are not meant specifically for them. They should not included by paying them a nominal amount or for phase 1 as stated in other options.
<u>Texture </u>describes the relationship between independent melodic lines in polyphony.
A musical texture with just one voice is monophony, and a texture with one dominant melodic voice supported by chords is homophony. On the other hand polyphony is a form of musical texture made up of two or more simultaneous lines of independent melody.
A musical texture known as polyphony consists of two or more melodic lines playing at once. Earlier simply by having musicians play or sing two separate tunes simultaneously, the earliest polyphonic music was produced.
To learn more about polyphony refer
brainly.com/question/13998259
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Selection bias
is a kind of error that occurs when the researcher decides who is going to be studied.
Answer:
Mobile phones have become part of our daily lives and besides communication, we have available a vast variety of apps that can make our daily life a lot easier
Explanation:
