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intro to animals

Chapter 4 lesson one science notecards

TermDefinition
Homeostasis The condition in which an organisms internal environment is kept stable in spite of changes in the external environment
Vertebrate An animal with a backbone
Invertebrate An animal without a backbone
Adaptations An inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment
Describe the three things that all animals have in common All animals are multicellular organisms that feed on other organisms and perform the same basic functions.
Describe the four functions of animals The main functions of an animal are to obtain food and oxygen, keep internal conditions stable, move in some way, and reproduce.
Describe how animals are classified and the three ways these relationships are determined Animals are classified according to how they are related to other animals. These relationships are determined by animals body structure, the way the animals develops, and it’s DNA.
Created by: user-1996767
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