The appearance of lungs was a(n) ____ that drove the evolution of land vertebrates.
A) key innovation
B) fixed trait
C) inbred trait
D) clade
E) stabilizing allele

Question

​The appearance of lungs was a(n) ____ that drove the evolution of land vertebrates.
A) ​key innovation
B) ​fixed trait
C) ​inbred trait
D) ​clade
E) ​stabilizing allele

Quizplus · Accepted Answer

The appearance of lungs was a key innovation that allowed vertebrates to colonize land by providing a means to extract oxygen from the air, rather than water, significantly impacting their evolutionary trajectory.

​The Appearance of Lungs Was A(n) ____ That Drove the Evolution

The Appearance of Lungs Was A(n) ____ That Drove the Evolution