No-gills.
Function of spiracles for sharks
Sometimes, Nurse sharks are called giant sleepy sharks. Sometimes, Nurse sharks are called giant sleepy sharks.
Nurse Sharks, Lemon sharks and Hammerhead Sharks
no
Not really. Grey Nurse Sharks and Sand Tiger Sharks are very similar in appearance.
According to : www.wikipedia.org/wiki/spiracles"Spiracles are small openings on the surface of some animals that usually lead to respiratory systems."In fish, such as sharks & rays these openings are used to allow the animal to 'rest'. They pump air across the gills when the animal is still.
no
Some vertebrates eg. sharks and stingrays and some arthropods eg. the indian moon moth and the cricket.
No
dsddf
no
There are three species of sharks known to eat starfish. These sharks are the Nurse sharks, Horn sharks and Port Jackson sharks.