Answer:
Circadian rhythm, or circadian clock, is an internal biological clock that regulates sleeping and feeding patterns, as well as a whole host of other biological functions in all living organisms. Organisms most active in the daytime are diurnal, humans included, whereas nocturnal organisms come alive at night.
Answer:
Term: Contrast
Explanation:
To compare something is to estimate, measure, or note the similarity or dissimilarity between something.
Contrasting, however, is noticing the striking differences, emphasizing differences rather than just pointing them out.
Two devices would be imagery and sound