A _______ is an abnormal opening in an anatomical structure caused by a failure of the structures to fuse or merge correctly early in embryonic development.

A _______ is an abnormal opening in an anatomical structure caused by a failure of the structures to fuse or merge correctly early in embryonic development.

A _______ is an abnormal opening in an anatomical structure caused by a failure of the structures to fuse or merge correctly early in embryonic development.



Answer: Cleft.