C.The density of ice is less than the density of water.
The largest sinus cavity is B. Maxillary Sinus
Mechanical digestion is the breaking down of food into smaller pieces physically. Mechanical digestion begins in the mouth as the food is chewed.
but in the case of chemical digestion, it breaks the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.
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The first thing to do when encountering a patient with internal bleeding is to get the person to a hospital. Internal bleeding can be fatal if they aren't stopped. If you're waiting for an ambulance, lay the person down if they experience dizziness or light-headedness. If they pass out, lay them on their side so they won't choke in the event that they should vomit.