With a smaller mouth opening the air moves faster and 'wind chill' cools your hand.
A vent allows for ventilation of air (allowing air in or out).
No, saliva doesn't contain reducing sugars, but it does contain enzymes that break down starch. Even so, starch is not a reducing sugar either - it is a polysaccharide.
ostia is the inlet into the sponge and osculum is the outlet through which the entered water etc. moves out
Circle the ones that are bolded.The process begins by water in the fish's surrounding entering its mouth's. Water enters the mouth by a very effective pumping system that involves the mouth and the outer flexible bony flap that cover the gills called the operculum. This is achieved by the opening and closing of the fish's mouth as it pumps water through the gills. When the fish's mouth is open, the operculum closes and water is drawn into the fish's mouth. Conversely, when the fish closes its mouth, the operculum opens and fresh water is then allowed to flow across the gills.By: Matthew Christensen
soap in potty mouth
the carbon minoxide releases itsself in to your hand causing it to feel warm
In protostome ("first mouth") the blastopore, or the first opening formed becomes the mouth. In deuterostomes ("second mouth"), the blastopore forms the anus and the mouth develops from a second opening.
An opening through which air or water can flow is a mouth. This can refer to the mouth of a river or a person or animal's mouth.
Trismus is restruction of the opening of the mouth due to spasm.
From your mouth
It's that opening in our heads that contains teeth and which we use for eating and talking. There is also the mouth of a river, where the water flows into the sea, or the mouth of a cave, which is an opening into it (metaphorically like a human mouth).
The opening is called an estuary.
The pharynx is the narrow opening at the back of the mouth. It is part of both the digestive system and the respiratory system.
roundworms have 2 body opening. The mouth and the anus
The mouth is only one opening into the human body.
The mouth.
Stoma is the medical term for mouth or opening.