| Term | Definition |
|
Notochord |
a flexible rod that supports the body. |
|
Cartilage |
connective tissue that is soft, flexible and strong. |
|
Vertebrae |
bone that makes up the backbone |
|
Ectotherm |
an animal whose body temperature of its environment |
|
Endotherm |
an animal whose body temperature is maintained at a steady temperature |
|
Swim Bladder |
an internal gas-filled sac that helps fish to swim at different depths. |
|
Buoyant Force |
the force water exerts upward on any underwater object. |
| Add or remove terms from this set |