Much of the evolutionary history of vertebrates can be seen in the way in which their embryos develop.
The evolutionary origin of vertebrates has been the subject of endless discussion among anatomists, paleontologists, embryologists, and physiologists. However, it is only now that molecular phylogenetics is offering a more rigorous framework for the placement of vertebrates among their invertebrate relatives that we can start to draw firm conclusions about the nature of ancient ancestors and the order in which distinctive anatomical features were acquired.
The chordate phylum, which includes echinoderms and hemichordates, as well as vertebrates tunicates and cephalochordates, makes up the deuterostomes. It has been hypothesized that this genomic event drove organismal macroevolution because the origin of vertebrates and jawed vertebrates is characterized by a doubling of the vertebrate genome.
To learn more about Vertebrates here
https://brainly.com/question/10873104
#SPJ4
