Animal Structure and Function
Order by
12 terms
Terms | Definitions |
|---|---|
 backbone | the main bone, made up of many small bones joined together, that runs along the middle of the back in some animals |
| exoskeleton | a hard outer covering that supports and protects some animals without backbones |
| molt | to shed an animal's outer covering |
| gills | organs for breathing found in fish and amphibians |
| amphibian | one of a large group of animals with backbones that live part of their lives in water and part on land |
| reptile | an animal with a backbone that has a dry, scaly skin |
| mammal | an animal with a backbone that usually has hair on its body and feeds milk to its young |
| behavior | the way a living thing acts |
| instinct | a behavior that an animal does not need to learn |
| reflex | a simple, automatic behavior |
| stimulus | the cause of a behavior |
| response | a behavior caused by a stimulus |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.
Set Champions
Scatter Champion
15.1 secs by khand
Space Race Champion
97,140 points by khand
Speller Champion
100% correct by panda12345678910