Question Detail
Question
3. During embryonic development, the three primary germ layers are formed through a process called
Correct Answer
Option B is the correct answer.
Detailed Explanation
Gastrulation is the developmental phase where the single-layered blastula rearranges into a multi-layered gastrula possessing ectoderm, mesoderm, and endoderm.
Hint
The developmental stage where blastula cells invaginate to form germ layers.