Oxygen is extracted from the water by the gills. There are gill rakers perpendicular to the gills which direct the flow of water taken in through the mouth in the opposite direction to blood flow. The water taken in throught the mouth is discharged through five gill slits.
Organs and Tissues
The Great White's gill filaments provide a relatively large surface for gas exchange.
Blood is a unique tissue in that it is largely liquid, composed of blood cells swept along in a viscous fluid called serum. As in humans, sharks have two basic types of blood cell, white and red.
Vocalization and Communication
They have an amazing sense of hearing which is believed to be how they communicate most of the time. They can hear sounds at very low frequencies so a great deal of it won’t even be picked up during the observations. They can also use their senses that allow them to pick up vibrations and electrical currents from other sharks in the water with them.
They don’t have any types of sounds that they can make for us to hear as whales and dolphins can. The males are very aggressive when they find a female though. They will bite her on the back to hold her in place as the mating is taking place.
Organs and Tissues
The Great White's gill filaments provide a relatively large surface for gas exchange.
Blood is a unique tissue in that it is largely liquid, composed of blood cells swept along in a viscous fluid called serum. As in humans, sharks have two basic types of blood cell, white and red.
Vocalization and Communication
They have an amazing sense of hearing which is believed to be how they communicate most of the time. They can hear sounds at very low frequencies so a great deal of it won’t even be picked up during the observations. They can also use their senses that allow them to pick up vibrations and electrical currents from other sharks in the water with them.
They don’t have any types of sounds that they can make for us to hear as whales and dolphins can. The males are very aggressive when they find a female though. They will bite her on the back to hold her in place as the mating is taking place.