an animal that has a beak, feathers, two wings, and two legs, they are the only animals that have feathers
bird
an animal that spends part of its life in water and the other part on land
amphibian
a change in body form
metamorphosis
made of a group of cells that are alike
tissue
a warm-blooded animal with hair or fur
mammal
a place or object that protects an animal
shelter
a group of tissues that work together, such as the stomach
organ
an animal that lives on land and has waterproof skin
reptile
a group of parts that work together
system
something that you learned to do, such as speaking a language
learned trait
characteristics such as hair and eye color
inherited trait
to rest through the cold winter
hibernate
to find a new home
migrate
an animal that lives its whole life in water
fish