What Is an Amphibian?: What Are Amphibians?

The video tutorial explains the characteristics of amphibians, including their backbones, cold-blooded nature, and unique skin that allows them to breathe. It highlights their ability to live both in water and on land, adapting their bodies to different environments.

What is a defining feature of amphibians related to their skeletal structure?

• They have a backbone made of many smaller bones.

• They have a single solid bone.

• They have no bones at all.

• They have a backbone made of cartilage.

How does the blood temperature of amphibians change?

• It changes with the surrounding temperature.

• It remains constant regardless of the environment.

• It is always warm.

• It is always cold.

What is a notable characteristic of a frog's skin?

• It is rough and dry.

• It is smooth and moist.

• It is scaly and hard.

• It is furry and warm.

How do most amphibians breathe?

• Through their lungs only.

• Through their gills only.

• Through their smooth, moist skin.

• Through their scales.

What is unique about the life cycle of amphibians?

• They live entirely in water.

• They live entirely on land.

• They live part of their life in water and part on land.

• They live in the air.