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science ch. 13
| Term | Definition |
|---|---|
| bone | hard tissue consisting of the protein collagen and minerals such as calcium that generally makes up most of the vertebrate endoskeleton |
| cartilage | tough, flexible tissue containing the protein collagen that makes up some or all of the endoskeleton of a vertebrate |
| ectothermy | controlling body temperature to a limited extent from outside the body by changing behavior |
| endothermy | controlling body temperature within a narrow range from inside the body through biological means |
| ovipary | development of an embryo within an egg outside the mother’s body |
| vertebra (vertebrae, plural) | one of the repeating units of bone that make up the vertebral column (backbone) of a vertebrate |
| vivipary | development and nourishment of an embryo within the mother’s body and not inside an egg |
| fin | projection from the body of a fish that helps it swim by acting as a paddle or rudder |
| fish | aquatic, ectothermic vertebrate that is covered with scales and has gills to absorb oxygen from water |
| gill | organ in fish and some other aquatic organisms that absorbs oxygen from water |
| spawning | gathering of adult fish in the same place at the same time to release gametes into the water for reproduction |
| swim bladder | balloon-like organ in many fish that can be inflated or deflated so the fish can rise or sink in the water |
| amphibian | ectothermic vertebrate with smooth, moist skin that lives on land as an adult but lays eggs and spends the larval stage in water |
| cloaca | body cavity in most vertebrates that has an external opening to pass wastes and gametes or fertilized eggs out of the body |
| keratin | tough protein in the skin, scales, feather, fur, or hair of vertebrates |
| tadpole | aquatic, legless larval stage of a frog |
| carnivore | heterotroph that eats only or mainly animals |
| crocodilian | reptile in the Crocodilia Order, such as a crocodile or an alligator |
| diaphragm | large, flat muscle that lies below the lungs in reptiles and mammals and helps move air into and out of the lungs |
| herbivore | heterotroph that eats only or mainly plants |
| omnivore | heterotroph that eats a variety of foods, including both plants and animals |
| reptile | four-limbed, ectothermic vertebrate that produces amniotic eggs and has scaly skin |
| ovovivipary | development of an embryo within an egg inside the mother’s body but without the embryo receiving any nourishment from the mother |
Created by:
tmanfred
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