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Unit 17 SFS

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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