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Photoperiodism
Part 1 of Paper
....4-hour periods. This response to day length is
called photo periodism. It controls many activities, among them is the
flowering of plants. The ability to respond to day length is linked to an
inner, light-sensitive circadian rhythm.
In the temperate zones, day lengths during the natural 24-hour cycle
vary with the .... Part 2 of Paper
....ock of any
organism is completely endogenous. They think that even under the most
constant of laboratory conditions living things are aware of the Earth's
rotation and that this has an effect on the wheelof their clocks. However,
many scientists believe that such factors are not essential to the
functioning of biological clocks.
Word Count: 276
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| Number of words: 260 - Approximate pages: 1 |
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