Classification of animals

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

• As an invertebrate

• As an amphibian

• As a mammal

• As a reptile

A scientist discovers a new organism. It has scales and uses lungs to breathe air. How will they classify this organism?

• As an invertebrate

• As a reptile

• As an amphibian

• As a fish

Which statement is true about vertebrates?

• Vertebrates do not have a backbone

• Most of the animals on Earth are vertebrates

• Vertebrates have backbones

• Vertebrates only live on land

Which group do frogs belong to?

• Reptiles

• Birds

• Mammals

• Amphibians

Which of these is NOT a vertebrate?

• Grasshopper

• Penguin

• Salamander

• Mouse

Which one of these organisms is a reptile?

• Hawk

• Grasshopper

• Mushroom

• Crocodile

The skin of a reptile...

• is smooth and moist.

• is covered in scales.

• is covered with feathers.

• is covered with fur.

Which statement is true ONLY of amphibians?

• They have gills as young and lungs as adults

• They look like their parents

• They have backbones

• They are consumers

I have dry and rough skin, lay eggs, breathe with lungs, and am ectothermic (cold-blooded). What am I?

• Fish
• Mammals
• Amphibians
• Reptiles

Fish take in oxygen through their?

• fins.
• gills.
• scales.
• vertebrae.