I want to know the answer to the following question:
What do deuterostome embryos undergo during cell division?
All the background I'm provided with is that "In most protostomes, cells simply fill in the interior of the gastrula to form the mesoderm, called schizocoelous development, but in deuterostomes, it forms through invagination of the endoderm, called enterocoelic pouching.". Is that enough to answer the question?