Animal Classification Worksheet

The two main categories of animals are _____________ and _______________.

• Vertebrates and Invertebrates

• Mammals and Birds

• Reptiles and Amphibians

• Herbivores and Carnivores

Vertebrates are mainly divided into _____________ groups (classes).

• five

• three

• six

• four

Vertebrates have ________________ inside their bodies.

• backbones

• wings

• scales

• tentacles

d) ________________ animals have a body temperature that does not change with the temperature of the surroundings.

• Cold-blooded

• Warm-blooded

• Aquatic

• Nocturnal

One way that animals are classified is according to whether or not they have a backbone.

• True

• False

Only fish can swim.

• True

• False

Frogs can breathe through their skin.

• True

• False

About 97% of the animal kingdom is made up of vertebrates.

• True

• False

Which of the following animals is not a vertebrate?

• Butterfly

• Shark

• Lizard

• Salamander

Which of the following is a group of warm-blooded animals?

• Fish

• Mammals

• Reptiles

• Amphibians