
The periodicity of these rhythms range from a fraction of a second to a number of years. Some, like the sleep/wake cycle are called circadian, from the Latin circa which means approximately and dies which means day. These cycles obey the everyday pattern set down by the rotation of the earth, taking about 24 hours to run their course. Evening falls and flowers great deal their petals. Plants fold their leaves. With the exception of owl...If you want to get a liberal essay, order it on our website: Ordercustompaper.com
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