Consequently, the timing and rhythms of biological functions must closely match periodic events like the solar day, the tides, the lunar cycle, and the seasons.

因此，生物功能的时间和节奏必须与太阳日、潮汐、月球周期和季节等周期性事件密切契合。

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Without the external cue, the difference accumulates and so the internally regulated activities of the biological day drift continuously, like the tides, in relation to the solar day.

如果没有外界提示信号，这种差异就会积累，生物的日常内部调节活动就继续进行，像与太阳日有关的潮汐活动那样。

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Other biological clocks are timed to the ebb and flow of the tides or the phases of the moon or the seasons of the year.

其他的生物钟是按照潮水的涨落，月亮的盈亏或一年的季节变化而调定的。

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