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Unit 17 SFS
| Term | Definition |
|---|---|
| adaptation | a structure or behavior that helps an organism survive in its surroundings |
| amphibian | a vertebrate animal that has moist skin and lays eggs; young live in water and breathe with gills, and adults live on land and breathe with lungs and skin |
| behavior | anything that an organism does |
| bird | a vertebrate animal that has feathers, lightweight bones, wings, breathes air, and lays eggs with a hard shell |
| brain | the main part of the nervous system that controls all body activities |
| camouflage | an adaptation that allows an animal to blend in with its surroundings (i.e. shape, color, pattern) |
| classification | grouping of organisms by their characteristics |
| dichotomous key | a sequence of steps that allows the identification of a living thing |
| environment | the surroundings, including both living and nonliving factors, that an organism lives in |
| external | coming from a source outside of the organism |
| fish | a vertebrate animal that lives in water, has scales or rough skin, has fins, and breathes with gills |
| habitat | the environment where an organism lives |
| heart | the organ that pumps blood through the body |
| internal | coming from a source inside the organism |
| invertebrate | an animal that does not have a backbone |
| light | a form of energy that can be seen by the human eye and allows objects to be seen |
| lungs | the two organs in the chest that breathe air |
| mammal | a vertebrate animal that has hair or fur, gives birth to live young, nurses its young with milk, and breathes air with lungs |
| migration | seasonal movement of animals from one place to another |
| muscle | a part of the body that produces movement |
| nervous system | the system which allows living things to respond to changes in the environment |
| nocturnal | most active at night |
| organism | a living thing |
| reptile | a vertebrate animal that has dry, leathered skin or scales, breathes air with lungs, and lays eggs with leathery shells or gives birth to live young |
| sense | take in information from the environment (i.e. see, hear, smell, touch, taste) |
| sight | the sense of awareness of light or color produced by eyes |
| skeleton | the internal skeleton of a vertebrate |
| survival | to continue to live or stay alive |
| system | a group of parts that work together to form something that is more complex |
| vertebrate | an animal that has a backbone |
Created by:
mblake4
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