Q. Which layer develops first during embryonic development?
A) Ectoderm
B) Mesoderm
C) Endoderm
D) Both (b) and (c)
Explanation
According to some embryologists, the hypoblast is termed the embryonic endoderm, the first germ layer to be formed. Some workers called epiblast as ectoderm, the second germ layer.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.