The pharynx is the narrow opening at the back of the mouth. It is part of both the digestive system and the respiratory system.
No, they have a very narrow opening for a mouth, as they eat plankton.
Rip current
Rip current
Slot
Depending on the size of the mouth the water has to flow against the atmospheric pressure. If the bottle is full and the mouth is narrow enough then the water may not flow at all. That is why a hypodermic needle does not leak when held with the needle facing down.
spinal cord
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.
passageway between the oral cavity and the pharynx
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.
When studying animals it is important to know their individual anatomy. The glottis in a frog is located at the back of the throat. It is what helps to inflate the lungs with air.In the mouth
Yes, waves can bend as they pass through a narrow opening. This phenomenon is known as diffraction. The degree of bending depends on the wavelength of the wave and the size of the opening.
crack!