Question

Which of the following traits is not characteristic of amphibians?

• A. Usually requires water for reproduction
• B. Amniote egg
• C. Skin used as supplementary respiratory organ
• D. Thin, scaleless skin

Answer 1

Answer: (B)

Amniote egg

Amphibian larvae are often aquatic and go through a complex metamorphosis process as they grow to adulthood. They have moist skin and do not have scales, feathers or hair. The life cycle of amphibians reflects their evolutionary history of bridging land and water. Most amphibians lay their eggs in freshwater. A few species tolerate brackish water and some species lay their eggs on land. Extraordinarily, some species even carry their eggs inside their body. These eggs are not amniotic in nature.