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Study Stack #4
| Term | Definition |
|---|---|
| chordate | the phylum whose members have a nerve notocord, and slits in their throat area at some point in their lives |
| notochord | a flexible rod that supports a chordates back. |
| vertebrate | An animal that has a backbone |
| ectotherm | An animal whose body does not produce much internal heat. |
| endotherm | An animal whose body controls and regulates its temperature by controlling the internal heat. |
| fish | An ectotherm vertebrate that lives in water and have fins |
| cartilage | A connective tissue that is more flexible than bone and that protects the ends of the bone and keeps them from rubbing together. |
| swim bladder | an internal, gas-filled organ that helps a bony fish stabilize its body at different water depths. |
| amphibian | an exothermic vertebrate that spends its early life in water and its adopted life on land. |
| tadpole | the larval from of a frog or a toad. |
| ventricle | A lower chamber of the heart that pumps blood out to the lungs and body. |
| habitat | The specific enviroment that provides the things an organism needs to live,grow,and reproduce |
| reptile | An ectothermic vertebrate that lays eggs and has lungs and scale skin. |
| kidney | A major organ of the excretory system that removes urea and other waste from blood |
| amniotic egg | An egg with a shell and internal membranes that keep the embryo moist. |
| bird | An endothermic vertebrate that has a feathers and a four-chambered heart. |
| crop | A bird`s internal storage pouch that allows it to store food inside it`s body after swallowing it. |
| gizzard | A muscular, thick-walled [art of a birds stomach that squeezes and grinds partially digested. |
| mammal | An endothermic vertebrate with a four-chambered heart, skin covered with fur or hair,and young fed with milk from the mother`s body. |
| mammary gland | An organ in female mammals that produces milk for the mammals young. |
| monotreme | A mammal that lay eggs. |
| marsupial | A mammal whose young are born alive at a early stage of devolopment,and which usually continue to develop in a pounch on there`s mother`s body. |
| gestation period | The lenght of time between ferilazation and birth of mammal. |
| placental mammal | A mammal that devolps inside its mother body until its body systems can fuction independtly. |
Created by:
shamiya.shawty
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