Vertebrates
An animal with a backbone inside its body?
vertebrate
This animal group is covered in feathers.
bird
Fish, amphibians and reptiles are this.
cold-blooded
This is the only group that feeds milk to their young.
mammals
Zebra
mammal
This vertebrate group has bumpy, leathery skin.
reptile
Mammals are one of the two vertebrate groups that are this.
warm-blooded
These animals are born in water and then change to be able to live on land.
Amphibians
Snake
reptile
This vertebrate group have scales for protection.
fish
This refers to body temperatures that change with the environment.
cold-blooded
These are used by fish and frogs for breathing underwater.
gills
Shark
fish
A unique characteristic of this group is that they are covered by hair or fur.
mammals
Animals that are this are able to keep their body temperature constant.
warm-blooded
Animals without a backbone
invertebrates
Salamander
amphibian
Another word for vertebra
backbone, spine
This group has outer coverings made up of smooth, moist skin.
amphibians
Name another warm-blooded vertebrate besides mammals.
birds
Worms are invertebrates or vertebrates
invertebrate
Penguin
bird