Answer:Amphibians evolved during the middle of the Devonian period (416 to 359 million years ago) from the lobe-finned fish of the vertebrate class Sarcopterygii. Species within the genus Ichthyostega (members of the Labyrinthodontia subclass) are considered by some scientists to be the earliest amphibians.
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Explanation:because i know
The enzyme will work as a catalyst and make the chemical reaction happen quicker
They provide a critical habitat for many other organisms <span>best explains the role of deep sea coral reefs in the environment.</span>
