Chordata
-These organisms have bilateral symetry
-They have segmented bodies and muscles
-They have or have once had a notochord, which is an internal skeletal rod thats job is to provide support.
- Chordates have a closed blood system, complete digestive sytem, a ventral heart, and an endoskeleton.
-Examples of chordates are Great White Sharks, Chimpanzees, and Crocodiles.
-They have segmented bodies and muscles
-They have or have once had a notochord, which is an internal skeletal rod thats job is to provide support.
- Chordates have a closed blood system, complete digestive sytem, a ventral heart, and an endoskeleton.
-Examples of chordates are Great White Sharks, Chimpanzees, and Crocodiles.
Great White sharks
Like other fish, sharks have gills that allow them to breathe. As sharks move, water passes into their mouths and enters the gill chambers. From the gill chambers, water exits the shark from the gill slits on the side of their body. While the water is in the gills, oxygen is absorbed into the blood. The blood is then circulated as the shark moves. This is why it is necessary for sharks to be moving at all times, because if they stop, blood cant's circulate and they are highly vulnerable to drowning.
Chimpanzees
Chimpanzees have very similar respiratory systems to humans. They first take in air through their mouth or nose. Then the air moves down the trachea into bronchial tubes, or air passageways, that lead to the lungs. The air then goes through the bronchioles, which are small passageways. The oxygen is passed through the bronchiole walls and is absorbed into blood, which is then sent to the heart and pumped throughout the body. The carbon dioxide that is produced is sent to the lungs, and is released when the chimpanzee exhales.
Frogs
As aquatic tadpoles, frogs breathe using their internal gils and skin. Eventually as the tadpoles develop, they lose their gills. As frogs, they breathe with their mouths closed. Frogs take air into their nostrils using throat movements and exhale using body contractions. Because they lack a diaphragm, frogs are able to pass the air into their lungs by moving down their mouth muscles.