Costly and elaborate displays from the male population continue to happen in spite<span> of the fact that it makes them vulnerable by attackers since </span>such displays send signs to the female population that they possess good genes which make it more likely for them to reproduce successfully.<span> </span>
The Spirit of the Laws is a treatise on political theory, as well as a pioneering work in comparative law, published in 1748 by Charles de Secondat, Baron de Montesquieu.
During the valsalva's maneuver, glottis is the part of the larynx closes to increase intra-abdominal pressure, such as to help with defecation
The glottis is a slit-like opening on floor of the pharynx, is called valve that can controls airflow in and out from the respiratory passages. The glottis may opens directly into the boxlike larynx. This voice box is occurs in all the amphibians but is anatomically most of the complex in frogs.
The larynx, can commonly called the voice box or glottis, is the passageway for the air between the pharynx and above and the trachea below. It extends from the fourth the sixth vertebral levels.
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