Amphibians Breathe Through On Land

Amphibians breathe through in water.

Amphibians breathe through on land. First it means that their skin helps them breathe since oxygen passes easily through it. Amphibians live partly on land and in water. As long as their skin is moist they can absorb oxygen directly from the air or water through the skin.

Most amphibians reproduce in fresh water while a few lay their eggs on land and have developed mechanisms to keep the eggs moist. They are animals of external or internal fertilization and oviparous. One of the few exceptions is the American spadefoot toad.

Their larvae not yet fully developed offspring mature in water and breathe through gills like fish while adults breathe air through lungs and skin. To exchange gases terrestrial reptiles depend on their lungs. With some amphibians it appears that they can breathe underwater when in fact they are holding their breath.

Sea turtles still breathe air but normally only go on land when they have to lay eggs. At this young stage the offspring breathe through the gills and after some time they develop lungs through a process known as metamorphosis. They have smooth skin no scales and moist bodies.

Carnivorous four-legged vertebrates that are coldblooded go through metamorphosis have primitive lungs live on both land and in water and that have. The lungs of amphibians are very poorly developed and are simple saclike structures. They lay eggs in water not on land and their eggs are soft with no hard shell.

An example of an amphibian is this toad. Amphibians can breathe underwater because they can absorb dissolved oxygen through their skins when underwater. Some common examples are frogs toads salamanders and newts.