Animals
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Created by:
riepointer on March 16, 2010
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30 terms
Terms | Definitions |
|---|---|
 cnidarian | an invertebrate with poison stingers on its tentacles |
| mollusk | a soft-bodied invertebrate |
| echinoderm | a spiny-skinned invertebrate |
| endoskeleton | an internal supporting structure |
| arthropod | an invertebrate with jointed legs and a body that is divided into sections |
| exoskeleton | a hard covering that protects an invertebrate's body |
| cold-blooded | describes an animal with a body temperature that changes with its surroundings |
| warm-blooded | describes an animal with a constant body temperature |
| amphibian | a cold-blooded vertebrate that spends a part of its life in water and a part of its life on land |
| reptile | a cold-blooded vertebrate that lives on land and has water-proof skin with scales or plates |
| mammal | a warm-blooded vertebrate with hair or fur that feeds milk to its young |
| circulatory system | the organ system that moves blood through the body |
| respiratory system | the organ system that brings oxyge nto body cells and removes waste gas |
| excretory system | the organ system that removes liquid wastes |
| digestive system | the organ system that breaks down food for fuel |
| skeletal system | the organ system made up of bones |
| muscular system | the organ system made up of muscles that move bones |
| nervous system | the organ system that controls all other body system |
| metamorphosis | is a process of changes during certain animals' development |
| life cycle | the stages of an animal's growth and change |
| life span | how long an animal can be expected to live |
| asexual reproduction | produces offspring with only one parent |
| sexual reproduction | produces offspring with two parents |
| heredity | the passing of traits from parent to offspring |
| camouflage | blending with surroundings |
| adaptation | a trait that helps an organism survive |
| mimicry | when one organism imitates the traits of another |
| inherited behavior | a behavior that is inborn, not learned |
| instinct | a pattern of behavior |
| learned behavior | behavior that is not inborn |
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