Thank you for reporting, we will resolve it shortly
Q.
An undifferentiated layer, mesoglea, is present in
NTA AbhyasNTA Abhyas 2020Animal Kingdom
Solution:
Animals in which the cells are arranged in two embryonic layers, external ectoderm, and internal endoderm, are called diploblastic animals, e.g., coelenterates. An undifferentiated layer, mesoglea, is present in between the ectoderm and the endoderm.