Animals transitioned from water to land through a series of significant morphological and physiological changes. Which of the following did NOT contribute to the transition?

Question

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The evolution of jaws contributed to the success of early terrestrial vertebrates, allowing better prey capture and feeding on land. The ability to breathe air was also crucial as terrestrial environments had less oxygen compared to the water. The evolution of appendages, such as legs in tetrapods, helped with locomotion and support on land. Therefore, all of these factors played a role in the transition from water to land except the evolution of jaws.

Animals Transitioned from Water to Land Through a Series of Significant