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Vertebrates Quiz
| Term | Definition |
|---|---|
| Fish | An ectothermic vertebrate that lives in the water and has fins |
| cartilage | a tissue that is more flexible than bone |
| swim bladder | An internal gas-filled organ that helps a bony fish stabilize its body at different depths |
| Amphibian | an ectothermic vertebrate that spends its early life in water and its adult life on land |
| tadpole | The larval form of a frog or toad |
| atria | an upper chamber of the heart that receives blood |
| ventricle | a lower chamber of the heart that pumps blood out to the lungs and body |
| Reptile | an ectothermic vertebrate that lays eggs and has lungs and scaly skin |
| Kidneys | an organ that filters wastes from the blood |
| urine | a watery fluid produced by the kidneys that contains wastes |
| amniotic egg | an egg with a shell and internal membranes that keep the embryo moist; a major adaptation to life on land. characteristic of reptiles, birds, and egg-laying mammals |
| Birds | an endothermic vertebrate that lays eggs and has feathers and a 4 chambered heart |
| Contour feather | a large feather that helps give shape to a bird's body |
| down feathers | a short, fluffy feather that traps heat and keeps a bird warm |
| crop | an internal organ of many birds that stores food |
| gizzard | a muscular, thick-walled part of a bird's stomach that squeezes and grinds partially digested food |
| Mammals | an endothermic vertebrate with a 4 chambered heart and skin covered with fur or hair, that feeds its young with milk from the mother's body |
| mammary glands | an organ in female mammals that produces milk for the mammal's young |
| diaphragm | a large muscle located at the bottom of a mammal's rib cage that functions in breathing |
| Monotremes | a mammal that lays eggs |
| marsupials | a mammal whose young are born at an early stage of development, and which usually continue to develop in a pouch on their mother's body |
| gestation period | the length of time between fertilization and birth of the mammal |
| placental mammal | a mammal that develops inside a mother's body until its body systems can function independantly |
| placenta | an organ in pregnant placental mammals that passes materials between the mother and the developing embryo. |
Created by:
sophiehudin
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