Characteristics of Amphibians

The video introduces amphibians, a diverse group of vertebrates adapted to both aquatic and terrestrial environments. It explains their life cycle, highlighting metamorphosis from tadpole to adult. The anatomy and physiology of adult amphibians are discussed, including their respiratory and circulatory systems, and their ability to live in various habitats.

What is a key characteristic of most amphibians?

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

• They can fly.

• They live entirely in water.

• They live entirely on land.

What is the process called when a tadpole transforms into an adult frog?

• Respiration

• Metamorphosis

• Photosynthesis

• Evolution

Which of the following changes occur during the metamorphosis of a tadpole?

• Growth of a longer tail

• Emergence of legs

• Development of scales

• Development of wings

How do most adult amphibians breathe?

• Through their eyes

• Through gills only

• Through lungs and skin

• Through their mouth

What type of circulatory system do amphibians possess?

• Single loop

• Triple loop

• Double loop

• No circulatory system