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.
One such reflex is a cough. This is typically triggered when the larynx senses that something has penetrated this upper portion of the airway. The cough, then, acts as a protective mechanism, serving to cough out or expel something at risk for being inhaled. There are normal reflexive thresholds or âtriggersâ that exist in the larynx. When these thresholds are lowered (i.e., more sensitive), less stimulation is required to trigger a cough.