click below
click below
Normal Size Small Size show me how
vocb cards
chapter 3 ex fish
| Term | Definition |
|---|---|
| 1 down ectotherm | And animal whose body dose not produce much internal heat |
| endotherm | An animal whose body controls and regulates its temperature by controlling the internal heat it produces |
| chordate | The phylum whose members have a notochord,a nerve cord,and slits in their threat area at some point in their lives |
| notochord | A flexible rod that supports a chordate's back |
| cartilage | A flexible,strong and tissue that is softer than bone |
| vertebra | The bones that make up the backbone |
| 2 down fish | An ectothermic vertebrate that lives in the water and has fins |
| swim bladder | Ann internal gas-filled organ that helps a boney fish stabilize its body at different water depths |
| buoyant force | The force that water exerts upwardon any underwater object |
| 3 down atrium | An upper chamber of the heart |
| habitat | The specific environment in which an animal lives |
| ventricle | The lower chamber of the heart,which pumps blood out to the lungs and body |
| amphibian | An ectchermic verte brate that spends its early life in water and its adulthood on land,returning to water to reproduce |
| 4 down reptile | An exothermic vertebrate that has lung and scaly skin |
| urine | The watery fluid in which the wastes produced by animals cells are evceted |
| 5 down paleontologist | A scientist who studies extinct organism ,examines fossil structure and makes comparisons to present day organisms. |
| fossil | The hardend remains or other evidence of a living thing that existed a long time in the past |
| sedimentary rock | Rock formed from harden layers of sediments-particles of clay sand mud or silt |