You did not write the symbol for the positive ion asked in the question. Summaries are useful for briefly telling the material that was explained on the webpage. You should explain why electrons are shared in covalent bonding instead of transferred like in ionic bonding.
gag reflex is a reflex contraction of the back of the throat, evoked by touching the soft palate. It prevents something from entering the throat except as part of normal swallowing and helps prevent choking.Different people have different sensitivities to the gag reflex.kaylamarie Â· 5 years ago.ag reflex is a reflex contraction of the back of the throat, evoked by touching the soft palate. It prevents something from entering the throat except as part of normal swallowing and helps prevent choking.
About a third of healthy adults do not have a gag reflex. However, in certain cases, absence of the gag reflex and pharyngeal sensation can be a symptom of a number of severe medical conditions, such as damage to the glossopharyngeal nerve, the vagus nerve, or brain death.bout a third of healthy adults do not have a gag reflex. However, in certain cases, absence of the gag reflex and pharyngeal sensation can be a symptom of a number of severe medical conditions, such as damage to the glossopharyngeal nerve, the vagus nerve, or brain death.