Understanding Vertebrates

Which characteristic is common among all mammals?

• They lay eggs.

• They have feathers.

• They give birth to live babies.

• They have scales.

What is a unique feature of amphibians like frogs?

• They have scales.

• They can only live on land.

• They have feathers.

• They can live both on land and in water.

What is a defining characteristic of reptiles?

• They live in water.

• They have feathers.

• They have dry skin covered in scales.

• They are warm-blooded.

How do fish breathe?

• Through skin.

• Through feathers.

• Through gills.

• Through lungs.

What makes birds unique among vertebrates?

• They have feathers and can fly.

• They have scales.

• They are cold-blooded.

• They live in water.