Based on Acanthostega Fossils, Scientists Now Believe That the Earliest

Multiple Choice

Based on Acanthostega fossils, scientists now believe that the earliest tetrapods

A) were fully terrestrial.
B) were amphibians that used their limbs to drag themselves over the land from one water hole to another.
C) were fish that used their limbs to raise themselves out of the water to get gulps of air for oxygen.
D) were reptiles that resembled crocodiles.