Anatomy Which of the following statement is true regarding gastrulation? A Establishes all the three germ layers B Usually occurs at 4 weeks of gestation C Involves the hypoblastic cells of inner cell mass D Occurs at the caudal end of the embryo prior to its cephalic end 💡 Explanation Which of the following statement is true regarding gastrulation? ✓ Correct Answer: A. Establishes all the three germ layers