Question

Tetrapods evolved from a finned organism that lived in the water. However, this ancestor was not like most of the fish we are familiar with today. Most animals we call fishes today are ray-finned fishes, the group nearest the root of this evogram.

Answer 1

The chordates include four-limbed vertebrates known as "tetrapods":Frogs, toads, and salamanders are amphibians. These species are both aquatic and land-based.

Although the majority of them have lungs in their adult forms, they can also breathe via their skin.Reptilia includes lizards, turtles, snakes, and crocodiles.The tetrapods (represented by Charles Darwin) and all other extinct creatures in the evogram, in contrast, have what we refer to as "fleshy fins" or "lobe fins." They have skin and muscle covering their limbs, in other words. Lepidotrichia were once present at the tips of these fleshy limbs in some species, such coelacanths, but they are now absent in the majority of fleshy-finned creatures.

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