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Biological clock
BIOLOGICAL CLOCK

Definition: (technical) A natural system in living things that controls regular physical activities such as sleeping.
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* All four elements above the line, at the least, would be in.


1. Purposeful and necessary.

2. 'Noiseless'. That is, not easily noticeable. In other words, not distinctly recognizable as 'ticking'.

3. Measurable and/or assessable, even if this is done over time.

4. Efficient. That is, 'clock' is never late or fast. And never stops!
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See perfect MOTHER NATURE.
Below the Line
5. Achieves its goal(s), as designed by nature, where system is not tampered with by humans.
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See perfect SYSTEM (1).

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