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  2. Diurnal cycle - Wikipedia

    en.wikipedia.org/wiki/Diurnal_cycle

    A diurnal cycle (or diel cycle) is any pattern that recurs every 24 hours as a result of one full rotation of the planet Earth around its axis. [1] Earth's rotation causes surface temperature fluctuations throughout the day and night, as well as weather changes throughout the year. The diurnal cycle depends mainly on incoming solar radiation. [2]

  3. Diurnality - Wikipedia

    en.wikipedia.org/wiki/Diurnality

    Services that alternate between high and low utilization in a daily cycle are described as being diurnal. Many websites have the most users during the day and little utilization at night, or vice versa. Operations planners can use this cycle to plan, for example, maintenance that needs to be done when there are fewer users on the web site. [13]

  4. Circadian rhythm - Wikipedia

    en.wikipedia.org/wiki/Circadian_rhythm

    A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours.Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).

  5. Photoperiodism - Wikipedia

    en.wikipedia.org/wiki/Photoperiodism

    A short-day plant will not flower if light is turned on for a few minutes in the middle of the night and a long-day plant can flower if exposed to more red-light in the middle of the night. [ 9 ] Cryptochromes are another type of photoreceptor that is important in photoperiodism.

  6. All About Giraffes: A 5-Day Lesson Plan - AOL

    www.aol.com/giraffes-5-day-lesson-plan-073700306...

    Our giraffe unit plan takes students on an As a result of their towering height, giraffes spend most of their days grazing amongst the canopies of acacia trees. All About Giraffes: A 5-Day Lesson Plan

  7. Day - Wikipedia

    en.wikipedia.org/wiki/Day

    A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours (86,400 seconds). As a day passes at a given location it experiences morning, noon, afternoon, evening, and night. This daily cycle drives circadian rhythms in many organisms, which are vital to many life processes.

  8. ‘Our plan might have paid off’: How FPL dollars secretly ...

    www.aol.com/news/plan-might-paid-off-fpl...

    The plan in this case was to use Burke to drain votes from Levine Cava, who had clashed with FPL over its nuclear power plant at Turkey Point, and force her into a runoff against her main opponent ...

  9. Diel vertical migration - Wikipedia

    en.wikipedia.org/wiki/Diel_vertical_migration

    For example, the occurrence of midnight sun in the Arctic induces changes to planktonic life that would normally perform DVM with a 24-hour night and day cycle. In the summers of the Arctic the Earth's north pole is directed toward the sun creating longer days and at the high latitude continuous day light for more than 24-hours. [10]