The muscles that contract (during cold or fright), the slanted hair follicle is pulled upright, dimpling the skin surface with goosebumps are called arrector pili muscle.
The arrector pili muscle are tiny muscle that attaches to the base of the hair follicle at one end and to the dermal tissue on the other end. When the body feels cold or fright the body generate heat and the arrector pili muscle contract all at once, that causes goosebumps on the skin.
The arrector pili muscle acts as the thermoregulator. Straight stand hair increases air trapping, so that the heat loss from the body decreases. The arrector pili muscle are mediated by the sympathetic nervous system.
To learn more about sympathetic nervous system here
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The Centrosome is the organelle responsible for organizing the cell into two parts in preparation for cell division. It develops the spindle fibers used in cell division.
The solution is B.
None, Electrons are not in the nucleus
<em>They</em><em> </em><em>are</em><em> </em><em>pres</em><em>ent</em><em> </em><em>in</em><em> </em><em>orbi</em><em>ts</em><em> </em><em>or</em><em> </em><em>ene</em><em>rgy</em><em> </em><em>shells</em><em>.</em><em> </em>
<span>Though I was considered an absolute monarch, I always tried to do my best for the Prussian people. I allowed for freedom of the press and religion and made the Prussian educational system one of the best in Europe. I did not believe in the divine right of kings and just thought of myself as a citizen like everyone else.
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The ruler that fits these descriptions is definitely <span>Frederick the Great.
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