Question

amphibians ... the first four limbed vertebrates​

Answer 1

Answer:

Tetrapods (/ˈtɛtrəpɒd/; from Ancient Greek: τετρα- "four" and πούς "foot") are four-limbed animals constituting the superclass Tetrapoda /tɛˈtrɒpədə/. ...

Amniote tetrapods began to dominate and drove most amphibian tetrapods to extinction.

Answer 2

Answer:

Tetrapoda are the first four limbed vertebrates.

Explanation:

• The earliest four-limbed vertebrates are known as tetrapoda, as are many of their descendants, including amphibians, birds, mammals, reptiles, and prehistoric aquatic animals. The class of tetrapod animals known as amniotes are those that lay their eggs on land or carry the fertilised egg inside the mother.
• Small animals called amphibians require water or a moist environment to exist. This group of species includes newts, salamanders, toads, and frogs. All have extremely thin skin that allows them to breathe and absorb water. Additionally, amphibians have unique skin glands that create functional proteins.
• Ectothermic tetrapod animals of the class Amphibia are known as amphibians. The phylum Lissamphibia includes every extant amphibian. They live in a wide range of habitats, with the majority of species being found in freshwater aquatic, terrestrial, fossorial, or arboreal settings.

Thus the answer is Tetrapoda.

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