Identify three adaptations that occur when amphibians transitioned onto the land.

1. Development of lungs: Amphibians evolved lungs to breathe air on land, as opposed to relying solely on gills for respiration in water.

2. Modification of skin: Amphibians developed thicker, more waterproof skin to prevent dehydration on land. This adaptation also helped protect them from predators and harsh environmental conditions.

3. Changes in reproductive strategies: Amphibians adapted their reproductive strategies to include laying eggs in moist environments on land, rather than in water. This allowed them to colonize terrestrial habitats successfully.

1. Development of limbs for locomotion: Amphibians evolved limbs with digits and joints for walking, running, and climbing.

2. Modifications of the respiratory system: Amphibians developed lungs and a vascularized skin for efficient gas exchange on land.

3. Development of a waterproof skin: Amphibians evolved a keratinized skin that prevented water loss and protected them from dehydration in the terrestrial environment.