<span>Race represents the convergence of biological factors with geographic origins, and cultural, economic, political, and legal factors. Even though race is believed to be connected to biological factors it really isn't. Scientists have long believed that race should not be tied to genetics or biology. Race should be looked at from cultural and geographic standpoints and other factors. Race is much more a social aspect than a biological aspect.</span>
Mountains were a barrier for settlers travelling in North America
Answer:
The Secret classification level "shall be applied to information, the unauthorized disclosure of which reasonably could be expected to cause serious damage to the national security."
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Answer:</h3>
24-hour. Suprachiasmatic nucleus
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Explanation:</h3>
The internal clock for humans is accurate to within a few minutes for most people. However, it tends to run on a 24-hour clock, and therefore must be reset each day. The brain region that is responsible for resetting the internal clock is the suprachiasmatic nucleus.
The reason why "24-hour" is the correct answer because the "24 hour" clock is the standard clock that most things go by.
The reason why "suprachiasmatic nucleus" is the correct answer because this is the part of the brain that is responsible for resetting the internal clock.
The suprachiasmatic nucleus controls the "circadian rhythm", in other words, it controls the 24-hour cycle in our body. It controls the time in which we sleep and works with the "circadian rhythm" in order to improve our behavior through out the day.
<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
