Animal Classification

How do scientists classify organisms?

• According to their living arrangement

• According to their feeding habits

• According to their mating habits

• According to their shared characteristics

Animals in the animal kingdom are classified into _____ groups.

• Four

• Six

• Three

• Two

Why do invertebrates grow to much larger sizes in water than on land?

• Because they are lighter in the water

• Because the water will support them

• Because they are more obvious to predators

• Because they want to capture more prey

Vertebrates make up less than ________ of all animals on the earth.

• 5%

• 10%

• 40%

• 30%

Vertebrates are divided into groups called ______.

• Phylum

• Kingdoms

• Classes

• Family

Jawless fish is in the same group as sting rays.

• True

• False

Which of these is NOT a characteristic of a fish?

• They breathe under water using gills

• They have scales

• They are warm blooded

• They have fins

Which of these is NOT an example of an amphibian?

• Newts

• Frogs

• Toads

• Snakes

How do amphibians differ from fish?

• They are coldblooded

• They have scales

• They lay eggs

• They live on land and in the water

Which group of vertebrates undergo metamorphosis?

• Amphibians

• Mammals

• Birds

• Reptiles