Biology, 24.10.2019 02:10 avalianagames
Acanthostega is an extinct amphibian. fossils indicate that it had four limbs, lungs, gills, and a tail used to propel itself through water. why are acanthostega fossils considered transitional fossils?
a. they display evidence of a form between an ancient fish and a modern bird.
b. they display evidence of a tetrapod with lungs.
c. they display evidence of gills and a fin-like tail.
d. they display evidence of a intermediate form between a fish and a tetrapod land animal.
Answers: 3
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Acanthostega is an extinct amphibian. fossils indicate that it had four limbs, lungs, gills, and a t...
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