Which structure in the development of the amphibian is equivalent to the primitive knot found in bird development?

Question

Quizplus · Accepted Answer

The dorsal lip of the blastopore in amphibian development is equivalent to the primitive knot (also known as Hensen's node) in bird development. Both structures play a crucial role in gastrulation, a process during which the germ layers of the embryo are formed and organized.

Which Structure in the Development of the Amphibian Is Equivalent