Animal Classifications

What are the two largest groups of animals?

• Mammals and reptiles
  

• Birds and amphibians
  

• Vertebrates and invertebrates
  

• Fish and amphibians

  
  

Which animals are examples of invertebrates?

• Frogs and toads
  

• Sharks and rays
  

• Octopus and jellyfish
  

• Eagles and hawks

  
  

What do vertebrates have that invertebrates do not?

• Scales
  

•  Backbones

• Feathers
  

• Fins

  
  

How do fish breathe underwater?

• Through lungs

• Through gills
  

• Through their skin

• Through their fins

Which of the following is NOT a characteristic of amphibians?

• Cold-blooded

• Smooth, moist skin

• Laying eggs in water
  

• Having feathers

  
  

What type of eggs do reptiles lay?

• Jelly-covered eggs
  

• Hard-shelled eggs
  

• Soft-shelled eggs

• No eggs, they give birth

  
  

 What type of body covering are birds known for having?

• Scales

• Fur

•  Feathers
  

• Gills

What is a unique fact about mammals?

• They can breathe underwater

• They lay eggs

• They have ears that stick out
  

• They have scales

  
  

 Which group of animals includes frogs and toads?

• Fish

• Reptiles
  

• Mammals
  

• Amphibians

  
  

 What helps scientists understand the differences between animals?

• Their diets

• Their habitats

• Their classifications

• Their sizes