Name the structures that appeared for the first time in amphibians in the course of evolution.
Answers
Amphibians were the first group of vertebrates to develop limbs and to be able to leave the water to conquer the land. Even if they are seen as simple and primitive animals by most people, amphibians show a wide diversity of survival strategies which have allowed them to occupy most terrestrial and fresh-water habitats. On this entry we’ll explain some of the aspects related to their evolution, explaining how our ancestors managed to get out of the water.
In the course of evolution the structures first appeared in amphibanns are
1. Limbs.
Limbs are considered to be evolved from amphibians. But some. Organisms like salamanders are limbless.
2. Development of respiration through the skin.
3.pedicillate teeth are present.
4. The auricular operculum is present in the ears. It is an extra bone in-ear which transmits sounds to the inner ear.