Classifying Animals

Which of these animals is a vertebrate?

• Spider

• Worm

• Snail

• Cat

Some but not all invertebrates

• have backbones

• have no backbones

• have shells

• can make their own food

An animal has fur and feeds milk to its young. How should it be classified?

• invertebrate

• mammal

• amphibian

• reptile

An animal has scales and uses lungs to breathe air. How should it be classified?

• invertebrate

• amphibian

• reptile

• fish

Which describes the relationship between a consumer and a producer?

• A fox eats a chipmunk.

• A mouse eats corn.

• A large fish eats a smaller fish.

• Bacteria break down a dead snake.

Which statement is true about vertebrates?

• They do not have a backbone

• They have backbones

• Most of the animals on Earth are vertebrates.

• Vertebrates only live on land.

Which group do frogs belong to?

• Repiles

• Birds

• Mammals

• Amphibians

Which of these is not a vertebrate?

• grasshoppper

• salamander

• penguin

• mouse

Which of these is a reptile?

• hawk

• grasshopper

• salamander

• crocodile

The skin of a reptile is

• smooth and moist

• covered with scales

• covered with feathers

• covered with fur