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What is an Animal?

Chapter 4 Lesson 1

TermDefinition
Homeostasis The condition in which an organism' s internal environment is kept stable in spite of changes in external environment.
Vertebrate An animal with a backbone.
Invertebrate An animal without a backbone.
Adaptation An inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.
What are three things that all animals have in common? They are all multicellular, they feed on other organisms, and perform same basic funcitons.
What are the four functions of animals? To obtain food and oxygen, keep internal conditions stable, move in some way, and reproduce.
How are animals classified and the three ways that this is determined? How close they are to other animals. This can be determined by its structure, how it develops, and its Deoxyribonucleic acid.
Created by: user-1915164
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