Understanding Animal Classification

What are the two largest groups of animals?

• Vertebrates and Invertebrates

• Mammals and Birds

• Fish and Mammals

• Reptiles and Amphibians

Which animals are known for having spines or backbones?

• Amphibians

• Arachnids

• Invertebrates

• Vertebrates

What characteristic is unique to birds among all animals?

• Having feathers

• Being warm-blooded

• Breathing air

• Laying eggs

Which group of animals can breathe underwater using gills?

• Reptiles

• Mammals

• Fish

• Birds

What is a common characteristic of amphibians?

• They are warm-blooded

• They have scales

• They undergo metamorphosis

• They lay eggs with hard shells

Which of the following is NOT a characteristic of mammals?

• Being warm-blooded

• Breathing air

• Laying eggs

• Having fur or hair

What do most fish have in common?

• They breathe with lungs

• They are warm-blooded

• They have fur

• They lay eggs

Which animals are known to have ears that stick out?

• Reptiles

• Birds

• Fish

• Mammals

What is true about reptile eggs compared to amphibian eggs?

• They undergo metamorphosis

• They are jelly-covered

• They have a protective shell

• They are laid in the water

Which of the following animals is an example of an invertebrate?

• Shark

• Octopus

• Frog

• Bird