Administrative functions in the body, functioning in accordance with the natural environment. Because living things and nature interact with each other all the time, nature does not stop, there are always changes that resulted from the earth revolve around the sun itself, and. The world is under the influence of light from the Sun. A day's cycle. Use the 24 hours period of swirling around the world 1 is divided into 2 ranges include the following night to day. As a result, organisms must adapt to working conditions in accordance with the cycle of nature, it will have a shorter life expectancy.
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