Yes the seal has nostrils that can close and open if wanted.
To prevent sand entering into their nose
Camels have specialized muscles that allow them to close their nostrils. This is an adaptation that to prevents them from inhaling sand.
The internal nostrils of the frog open into the frogs mouth. When the nostrils open it allows air to enter the enlarged mouth.
as soon as your close to the next rooms entrance just open Penguin mail and then close
To prevent sand entering into their nose
The internal nostrils of the frog open into the frogs mouth. When the nostrils open it allows air to enter the enlarged mouth.
No that is impossible, for a turtle doesn't even have nostrils.
if you have more than 1 open close the 1 you don't need.
In reference to frogs, the number of times is the same. So, in one minute, however many times the nostrils open and close is how many times the throat moves up and down.
Same way you close your bum.
a giraffe's nostrils help them by when they close them they block out dirt and sand.