Which one of the following best describes vertebrates?

• Animals with a backbone.

• Animals that give birth to live young.

• Animals with an exoskeleton.

• Animals that are covered with scales.

In which class are humans classified?

• Birds

• Mammals

• Prokaryotes

• Reptiles

Which type of animal breathes through its gills?

• Reptiles

• Mammals

• Fish

• Birds

An axolotl is a fish

• True

• False

Which type of animal usually starts its life in the water and moves to land when they become an adult?

• Fish

• Bear

• Amphibian

• Mammal

Animals with an exoskeleton or are Soft-bodied are called...?

• Vertebrate

• Mammals

• Fish

• Invertebrate

Is an octopus a vertebrate or invertebrate?

• Vertebrate

• Invertebrate

Which animals give birth to live young and feed their young with milk?

• Reptiles

• Fish

• Mammals

• Amphibians

Some reptiles can give birth to live young.

• True

• False

Which one best describes a whale?

• invertebrate

• Reptile

• Fish

• Mammal